Anagrams of back-formation

Word back-formation has 1348 anagrams that can be made by using the letters of back-formation.

9 letter words you can make with back-formation

formation: noun, the act or process of forming or the state of being formed:
inamorato: noun, a man who loves or is loved; male sweetheart or lover.
fabricant: noun, a maker or manufacturer.

8 letter words you can make with back-formation

aromatic: noun, a plant, drug, or medicine yielding a fragrant aroma, as sage or certain spices and oils.
contrib.
Manitoba: noun, a province in central Canada. 246,512 sq. mi. (638,466 sq. km). Abbreviation: Man. Capital: Winnipeg.
Bancroft: noun, George, 1800–91, U.S. historian and statesman.
Marciano: noun, Rocky (Rocco Francis Marchegiano) 1924–69, U.S. boxer: world heavyweight champion 1952–56.
abortion: noun, Also called voluntary abortion. the removal of an embryo or fetus from the uterus in order to end a pregnancy.
marocain: noun, a crepe fabric made of silk, wool, or rayon, or a combination of these fibers, and distinguished by a strong rib effect, used in the manufacture of dresses and women's suits; a heavy Canton crepe.
botanica: noun, a shop specializing in herbs, spiritual items, etc.
acromion: noun, the outward end of the spine of the scapula or shoulder blade.
Brockton: noun, a city in E Massachusetts.
Fairmont: noun, a city in W West Virginia.
Cambrian: noun, Geology. the Cambrian Period or System.
animator: noun, a person or thing that animates.
romantic: noun, a romantic person.
Croatian: noun, a Croat.
raincoat: noun, a waterproof or water-repellent coat worn as protection against rain.
monocrat: noun, a person favoring monocracy.
Fomorian: noun, one of a race of pirates or sea demons who raided and pillaged Ireland but were finally defeated: sometimes associated with the hostile powers of nature.
macaroon: noun, a drop cookie made of egg whites, sugar, usually almond paste or coconut, and sometimes a little flour.
Fraction: noun, Mathematics. a number usually expressed in the form a/b. a ratio of algebraic quantities similarly expressed.
macaroni: noun, small, tubular pasta prepared from wheat flour.
kiabooca: noun, padouk.
trackman: noun, a person who assists in inspecting, installing, or maintaining railroad tracks.

7 letter words you can make with back-formation

Formica
fronto-
katcina: noun, kachina.
Cambrai: noun, a city in N France: battles 1917, 1918.
narcoma: noun, stupor produced by narcotics.
Cambria: noun, medieval name of Wales.
boatman: noun, a person skilled in the use of small craft.
frantic: adjective, desperate or wild with excitement, passion, fear, pain, etc.; frenzied.
animato: adjective, animated; lively. Abbreviation: anim.
faction: noun, a group or clique within a larger group, party, government, organization, or the like:
amorino: noun, a putto represented as an infant cupid.
infract: verb (used with object), to break, violate, or infringe (a law, commitment, etc.).
ocarina: noun, a simple musical wind instrument shaped somewhat like an elongated egg with a mouthpiece and finger holes.
Amon-Ra: noun, Amen-Ra.
omicron: noun, the 15th letter of the Greek alphabet (O, o).
Ontario: noun, a province in S Canada, bordering on the Great Lakes. 412,582 sq. mi. (1,068,585 sq. km). Capital: Toronto.
Amboina: noun, Ambon.
oration: noun, a formal public speech, especially one delivered on a special occasion, as on an anniversary, at a funeral, or at academic exercises.
2,4,5-t: noun, a light-tan, water-insoluble solid, C 8 H 5 Cl 3 O 3 , used chiefly for killing weeds.
Croatia: noun, a republic in SE Europe: includes the historical regions of Dalmatia, Istria, and Slavonia; formerly a part of Yugoslavia. 21,835 sq. mi. (56,555 sq. km) Capital: Zagreb.
infarct: noun, a localized area of tissue, as in the heart or kidney, that is dying or dead, having been deprived of its blood supply because of an obstruction by embolism or thrombosis.
carotin: noun, carotene.
ratfink: noun, fink (defs 3, 4).
motoric: adjective, motor (def 11).
monitor: noun, (especially formerly) a student appointed to assist in the conduct of a class or school, as to help take attendance or keep order.
fanback: adjective, (of a chair) having a fan-shaped back.
Marconi: noun, Guglielmo [goo-lyel-maw] /guˈlyɛl mɔ/ (Show IPA), Marchese, 1874–1937, Italian electrical engineer and inventor, especially in the field of wireless telegraphy: Nobel Prize in physics 1909.
bimotor: noun, an airplane or other vehicle that has two engines.
Mankato: noun, a city in S Minnesota, on the Minnesota River.
manroot: noun, man-of-the-earth.
formant: noun, Music. the range and number of partials present in a tone of a specific instrument, representing its timbre.
marcato: adjective, (of notes or chords in a musical score) strongly accented.
Marcian: noun, a.d. 392?–457, emperor of the Eastern Roman Empire 450–457.
macaron: noun, a round, colored cookie consisting of a ganache or buttercream filling between two halves made from beaten egg whites mixed with sugar and ground almonds.
francia: noun, José Gaspar Rodríguez de [haw-se gahs-pahr raw-th ree-ges th e] /hɔˈsɛ gɑsˈpɑr rɔˈðri gɛs ðɛ/ (Show IPA), ("El Supremo") 1766–1840, Paraguayan political leader: dictator 1814–40.
Marcion: noun, a.d. c100–c160, Christian Gnostic.
biotron: noun, a controlled laboratory environment designed to provide uniform experimental conditions with the aim of producing uniform organisms for use in experiments.
Bactria: noun, an ancient country in W Asia, between the Oxus River and the Hindu Kush Mountains. Capital: Bactra.
Katrina: noun, a female given name, form of Katherine.
footman: noun, a liveried servant who attends the door or carriage, waits on table, etc.
airboat: noun, Also called swamp boat. a small open boat having a very shallow draft and driven by a caged airplane propeller mounted above the rear transom, capable of traveling at relatively high speeds through shallow water, swamps, etc.
Franco-
Finmark: noun, the markka of Finland.
Martian: noun, a supposed inhabitant of the planet Mars:
Martina: noun, a female given name.
fibroma: noun, a tumor consisting essentially of fibrous tissue.
Minorca: noun, Spanish Menorca. one of the Balearic Islands, in the W Mediterranean. 271 sq. mi. (700 sq. km).
fatback: noun, Chiefly South Midland and Southern U.S. the fat and fat meat from the upper part of a side of pork, usually cured by salt.
cabrito: noun, the meat of a young goat.
cartoon: noun, a sketch or drawing, usually humorous, as in a newspaper or periodical, symbolizing, satirizing, or caricaturing some action, subject, or person of popular interest.
fanatic: noun, a person with an extreme and uncritical enthusiasm or zeal, as in religion or politics.
Ticknor: noun, George, 1791–1871, U.S. literary historian and educator.
Cortona: noun, Pietro da [pye-traw dah] /ˈpyɛ trɔ dɑ/ (Show IPA), (Pietro Berrettini) 1596–1669, Italian painter and architect.
Romanic: noun, romance1 (def 9).
craniom
Abinoam: noun, the father of Barak. Judges 4:6; 12; 5:1.
cortina: noun, a weblike, often evanescent veil covering the gills or hanging from the cap edge of certain mushrooms, particularly those of genus Cortinarius, and sometimes persisting as a ring or remnant of fibrils around the mushroom stalk.
acrobat: noun, a skilled performer of gymnastic feats, as walking on a tightrope or swinging on a trapeze.
Comtian: noun, a follower of the philosophy of Auguste Comte.
African: noun, a native or inhabitant of Africa.
Coimbra: noun, a city in central Portugal: noted university founded at Lisbon 1290, transferred here 1537.
confirm: verb (used with object), to establish the truth, accuracy, validity, or genuineness of; corroborate; verify:
coranto: noun, courante.
conform: verb (used without object), to act in accordance or harmony; comply (usually followed by to):
Comorin: noun, Cape, a cape on the S tip of India, extending into the Indian Ocean.
cranio-
Romania: noun, a republic in SE Europe, bordering on the Black Sea. 91,699 sq. mi. (237,500 sq. km). Capital: Bucharest.
corbina: noun, a game fish, Menticirrhus undulatus, of the croaker family, inhabiting Pacific coastal waters of North America.
actino-
tamarin: noun, any South American marmoset of the genera Saguinus and Leontopithecus (Leontideus), having silky fur and a nonprehensile tail: several species are threatened or endangered.
contra-
Tambora: noun, an active volcano in Indonesia, on N Sumbawa: eruption 1815. 9042 feet (2756 meters).
taborin: noun, a small tabor.
Aaronic: adjective, of or relating to Aaron.
Comfort: noun, relief in affliction; consolation; solace:
tanbark
aciform: adjective, needle-shaped; acicular.

6 letter words you can make with back-formation

format: noun, the shape and size of a book as determined by the number of times the original sheet has been folded to form the leaves. Compare duodecimo, folio (def 2), octavo, quarto.
Bartok: noun, Béla [bey-luh;; Hungarian bey-lo] /ˈbeɪ lə;; Hungarian ˈbeɪ lɒ/ (Show IPA), 1881–1945, Hungarian composer.
manioc: noun, cassava.
Manati: noun, a city in N Puerto Rico.
barman: noun, a man who bartends; bartender.
bromo-
barit.
bronco: noun, a range pony or mustang of the western U.S., especially one that is not broken or is imperfectly broken.
maniac: noun, a raving or violently insane person; lunatic.
ration: noun, a fixed allowance of provisions or food, especially for soldiers or sailors or for civilians during a shortage:
Forman: noun, Milos [mee-lawsh] /ˈmi lɔʃ/ (Show IPA), (Jan Tomas Forman) born 1932, U.S. film director, born in the former Czechoslovakia.
mantic: adjective, of or relating to divination.
Bamako: noun, a city in and the capital of Mali: inland port on the Niger River.
maroon: noun, (often initial capital letter) any of a group of blacks, descended from fugitive slaves of the 17th and 18th centuries, living in the West Indies and Guiana, especially in mountainous areas.
Firman: noun, an edict or administrative order issued by or in the name of a Middle Eastern sovereign (formerly by an Ottoman Turkish sultan).
Markan: adjective, Marcan.
Marion: noun, Francis ("the Swamp Fox") 1732?–95, American Revolutionary general.
Bactra: noun, ancient name of Balkh.
Corfam
Marino: noun, Daniel Constantine ("Dan") born 1961, U.S. football player.
Bairam: noun, ʾId al-Adha.
Marina: noun, a boat basin offering dockage and other service for small craft.
Marian: noun, a person who has a particular devotion to the Virgin Mary.
forint: noun, an aluminum coin and the monetary unit of Hungary, equal to 100 fillér. Abbreviation: F., Ft.
mantra: noun, Hinduism. a word or formula, as from the Veda, chanted or sung as an incantation or prayer.
Tarmac: noun, (lowercase) a road, airport runway, parking area, etc., paved with Tarmac, tarmacadam, or a layer of tar.
Corbin: noun, Margaret (Cochran) 1751–1800, American Revolutionary military heroine.
corban: noun, a sacrifice or offering made to God, especially among the ancient Hebrews in fulfillment of a vow.
Abnaki: noun, Abenaki.
Marcia: noun, a female given name: from a Latin word meaning “warlike.”.
Citron: noun, a pale-yellow fruit resembling the lemon but larger and with thicker rind, borne by a small tree or large bush, Citrus medica, allied to the lemon and lime.
Marcan: adjective, of, relating to, or characteristic of St. Mark or of the second Gospel.
bromic: adjective, containing pentavalent bromine.
Bantam: noun, (often initial capital letter) a chicken of any of several varieties or breeds characterized by very small size.
combat: noun, Military. active, armed fighting with enemy forces.
Barton: noun, Clara, 1821–1912, U.S. philanthropist who organized the American Red Cross in 1881.
macro-
formic: adjective, of or relating to ants.
Kamina: noun, a city in S Zaire.
Kariba: noun, an artificial lake in SE Africa on the border of SW Zimbabwe and S Zambia: site of hydroelectric power project. About 2000 sq. mi. (5200 sq. km).
bonaci: noun, any of several edible serranid fishes, as Mycteroperca bonaci.
Bonita: noun, a female given name.
bonito: noun, any mackerellike fish of the genus Sarda, as S. sarda, of the Atlantic Ocean.
Bontoc: noun, Bontok.
Bontok: noun, a member of a people who inhabit northern Luzon in the Philippines.
Karami: noun, Rashid [ra-sheed] /ræˈʃid/ (Show IPA), 1921–1987, Lebanese lawyer and statesman: eight-time prime minister between 1955 and 1987.
Kantor: noun, MacKinlay [muh-kin-lee] /məˈkɪn li/ (Show IPA), 1904–77, U.S. novelist.
kantar: noun, (in some Middle Eastern countries) a unit of weight corresponding to the hundredweight, but varying in different localities.
iatro-
kation: noun, cation.
kaftan: noun, caftan.
icono-
intro.
intra-
Borman: noun, Frank, born 1928, U.S. astronaut.
intomb: verb (used with object), entomb.
tribo-
comfit: noun, a candy containing a nut or piece of fruit.
inform: adjective, without form; formless.
troika: noun, a Russian carriage, wagon, or sleigh drawn by a team of three horses abreast.
Bomarc: noun, a winged, surface-to-air interceptor missile.
Katmai: noun, Mount, an active volcano in SW Alaska. 7500 feet (2286 meters).
contr.
tombac: noun, an alloy, used to imitate gold, containing from 70 to 92 percent copper with zinc and sometimes tin and other materials forming the remainder.
Batman: noun, a soldier assigned to an officer as a servant.
maftir: noun, the concluding section of the portion of the Torah chanted or read in a Jewish service on the Sabbath and festivals.
macron: noun, a horizontal line used as a diacritic over a vowel to indicate that it has a long sound or other specified pronunciation, as (ā) in fate (fāt).
tobira: noun, a shrub, Pittosporum tobira, of China and Japan, having leathery leaves, fragrant, greenish-white flower clusters, densely hairy fruit, and lemon-scented foliage.
Biafra: noun, a former secessionist state (1967–70) in SE Nigeria, in W Africa. Capital: Enugu.
Bianca: noun, a female given name: from an Italian word meaning “white.”.
Bianco: noun, Mon·te [mawn-te] /ˈmɔn tɛ/ (Show IPA). Italian name of Mont Blanc.
Bicorn: noun, bicorne.
biform: adjective, having or combining two forms, as a centaur or mermaid.
franca: noun, a city in Sao Paulo state, SE Brazil.
Torino: noun, Turin.
Briton: noun, a native or inhabitant of Great Britain, especially of England.
confit: noun, duck or goose cooked in its own fat and preserved.
Franck: noun, César (Auguste) [sey-zar oh-gyst] /seɪˈzar oʊˈgüst/ (Show IPA), 1822–90, French composer, born in Belgium.
birota: noun, a two-wheeled cart, usually drawn by three mules, used for transporting commercial goods and one or two passengers.
korona: noun, Also, krone. a former silver coin and monetary unit of Austria, equal to 100 hellers: discontinued after 1923.
confab: noun, a confabulation.
Komati: noun, a river in NE South Africa, N Swaziland, and SW Mozambique, flowing generally NE to the Indian Ocean. 500 miles (805 km) long.
Kirman: noun, a Persian rug marked by ornate flowing designs and light, muted colors.
Franko: noun, Ivan [ee-vahn] /iˈvɑn/ (Show IPA), 1856–1916, Ukrainian writer.
kimono: noun, a loose, wide-sleeved robe, fastened at the waist with a wide sash, characteristic of Japanese costume.
Aintab: noun, former name of Gaziantep.
corita: noun, a boat resembling a large, woven basket, used by Indians of the southwestern U.S.
tambac: noun, tombac.
Cantab
Cantor: noun, the religious official of a synagogue who conducts the liturgical portion of a service and sings or chants the prayers and parts of prayers designed to be performed as solos.
Amrita: noun, the beverage of immortality.
obtain: verb (used with object), to come into possession of; get, acquire, or procure, as through an effort or by a request:
amtrac: noun, amphibian (def 4).
Amtrak: noun, a government-subsidized public corporation created by Congress in 1970 to operate a national intercity passenger railroad system through contracts with existing railroads.
Anakim: plural noun, tall people or giants who lived in S Palestine and were destroyed or scattered after the arrival of the Hebrews. Num. 13:28, 31; Deut. 2:21; 9:2.
fabric: noun, a cloth made by weaving, knitting, or felting fibers:
cantar: noun, a poem consisting of four-line stanzas, each line having eight syllables.
Crania: noun, the skull of a vertebrate.
Croton: noun, any of numerous chiefly tropical plants constituting the genus Croton, of the spurge family, several species of which, as C. tiglium, have important medicinal properties.
Nootka: noun, a Wakashan language spoken in SW Canada on the western coast of Vancouver Island.
Factor: noun, one of the elements contributing to a particular result or situation:
crambo: noun, a game in which one person or side must find a rhyme to a word or a line of verse given by another.
nocti-
camion: noun, a strongly built cart or wagon for transporting heavy loads; dray.
nitro-
Anomia: noun, the inability to name objects or to recognize the written or spoken names of objects.
anorak: noun, a hooded pullover jacket originally made of fur and worn in the arctic, now made of any weather-resistant fabric.
Tacoma: noun, a seaport in W Washington, on Puget Sound.
Fabian: noun, a member of or sympathizer with the Fabian Society.
octroi: noun, (formerly especially in France and Italy) a local tax levied on certain articles, such as foodstuffs, on their entry into a city.
action: noun, the process or state of acting or of being active:
rabato: noun, a wide, stiff collar of the 17th century, worn flat over the shoulders or open in front and standing at the back.
airman: noun, an aviator.
ratoon: noun, a sprout or shoot from the root of a plant, especially a sugarcane, after it has been cropped.
craton: noun, a relatively rigid and immobile region of continental portions of the earth's crust.
carton: noun, a cardboard or plastic box used typically for storage or shipping.
Ramona: noun, a female given name.
akimbo: adjective, adverb, with hand on hip and elbow bent outward:
Catano: noun, a city in NE Puerto Rico, SW of San Juan.
racoon: noun, raccoon.
Carnot: noun, Lazare Nicolas Marguerite [la-zar nee-kaw-lah mar-guh-reet] /laˈzar ni kɔˈlɑ mar gəˈrit/ (Show IPA), 1753–1823, French general and statesman.
Carman: noun, one of the crew of a streetcar or the like, as the motorman.
Africa: noun, a continent S of Europe and between the Atlantic and Indian oceans. About 11,700,000 sq. mi. (30,303,000 sq. km).
cation: noun, a positively charged ion that is attracted to the cathode in electrolysis.
Carina: noun, Zoology. a keellike part or ridge, especially a ridge of bone on the ventral side of the sternum of birds.
Roboam: noun, Rehoboam.
catkin: noun, a spike of unisexual, apetalous flowers having scaly, usually deciduous bracts, as of a willow or birch.
Romaic: noun, demotic (def 5).
Carian: noun, a native or inhabitant of Caria.
carbon: noun, Chemistry. a widely distributed element that forms organic compounds in combination with hydrogen, oxygen, etc., and that occurs in a pure state as diamond and graphite, and in an impure state as charcoal. Symbol: C; atomic weight: 12.011; atomic number: 6; specific gravity: (of diamond) 3.51 at 20°C; (of graphite) 2.26 at 20°C.
carbo-
amino-
Natick: noun, a town in E Massachusetts, W of Boston.
infra-
antiar: noun, the upas tree.
Fatima: noun, a.d. 606?–632, daughter of Muhammad and wife of Ali.
Monica: noun, a female given name.
arnica: noun, any composite plant of the genus Arnica, having opposite leaves and yellow flower heads.
caftan: noun, a long garment having long sleeves and tied at the waist by a girdle, worn under a coat in the Middle East.
aroint: verb (imperative), begone:
narco-
corona: noun, a white or colored circle or set of concentric circles of light seen around a luminous body, especially around the sun or moon.
farina: noun, flour or meal made from cereal grains and cooked as cereal, used in puddings, soups, etc.
cabman: noun, cabdriver.
tamari: noun, a rich, naturally fermented soybean sauce containing little or no wheat and thicker than soy sauce.
mikron: noun, micron.
fantom: noun, an apparition or specter.
micron: noun, Also called micrometer. the millionth part of a meter. Symbol: μ, mu.
micro-
McNair: noun, Lesley James, 1883–1944, U.S. army officer.
fibro-
matron: noun, a married woman, especially one who is mature and staid or dignified and has an established social position.
atomic: adjective, of, pertaining to, resulting from, or using atoms, atomic energy, or atomic bombs:
matri-
atonic: noun, Grammar. an unaccented word, syllable, or sound.
ackton: noun, acton.
caiman: noun, any of several tropical American crocodilians of the genus Caiman and allied genera: some are endangered.
Monaco: noun, a principality on the Mediterranean coast, bordering SE France. ½ sq. mi. (1.3 sq. km).
morion: noun, an open helmet of the 16th and early 17th centuries, worn by common soldiers and usually having a flat or turned-down brim and a crest from front to back.
Aomori: noun, a seaport on N Honshu, in N Japan.
Arabic: noun, a Semitic language that developed out of the language of the Arabians of the time of Muhammad, now spoken in countries of the Middle East and North Africa. Abbreviation: Ar.
cambia: noun, a layer of delicate meristematic tissue between the inner bark or phloem and the wood or xylem, which produces new phloem on the outside and new xylem on the inside in stems, roots, etc., originating all secondary growth in plants and forming the annual rings of wood.
Botkin: noun, Benjamin Albert, 1901–75, U.S. folklorist, editor, and essayist.
motion: noun, the action or process of moving or of changing place or position; movement.
actin-
Morton: noun, Jelly Roll (Ferdinand Morton) 1885–1941, U.S. jazz pianist, composer, and band leader.
Namtar: noun, the Sumerian and Akkadian demon personifying death.
Antrim: noun, a county in NE Northern Ireland. 1098 sq. mi. (2844 sq. km). County seat: Belfast.
cambio: noun, a currency exchange.
Moroni: noun, a town in and the capital of the Comoros.

5 letter words you can make with back-formation

fakir: noun, a Muslim or Hindu religious ascetic or mendicant monk commonly considered a wonder-worker.
incor
crank: noun, Machinery. any of several types of arms or levers for imparting rotary or oscillatory motion to a rotating shaft, one end of the crank being fixed to the shaft and the other end receiving reciprocating motion from a hand, connecting rod, etc.
Fiona: noun, a female given name.
crim.
fort.
faint: noun, a temporary loss of consciousness resulting from a decreased flow of blood to the brain; a swoon:
croak: noun, the act or sound of croaking.
coria: noun, plural of corium.
Croat: noun, a native or inhabitant of Croatia; Croatian.
incr.
fibr-
crit.
foram: noun, foraminifer.
craft: noun, an art, trade, or occupation requiring special skill, especially manual skill:
crook: noun, a bent or curved implement, piece, appendage, etc.; hook.
Fanti: noun, a Kwa language spoken in Ghana that is mutually intelligible with Twi.
farci: adjective, filled with with seasoned bread crumbs or other savory matter; stuffed.
Frank: noun, a signature or mark affixed by special privilege to a letter, package, or the like to ensure its transmission free of charge, as by mail.
franc: noun, an aluminum or nickel coin and monetary unit of France, Belgium, and Luxembourg until the euro was adopted, equal to 100 centimes. Abbreviation: F., f., Fr, fr.
cont.
croon: noun, the act or sound of crooning.
conf.
facia: noun, dashboard (def 1).
Corot: noun, Jean Baptiste Camille [zhahn ba-teest ka-mee-yuh] /ʒɑ̃ baˈtist kaˈmi yə/ (Show IPA), 1796–1875, French painter.
finca: noun, a ranch or large farm in a Spanish-speaking country, especially a plantation in tropical Spanish America.
Comr.
Frick: noun, Henry Clay, 1849–1919, U.S. industrialist, art patron, and philanthropist.
frock: noun, a gown or dress worn by a girl or woman.
cronk: adjective, sick or feeble.
front: noun, the foremost part or surface of anything.
coomb: noun, combe.
Corti: noun, Alfonso [al-fon-soh;; Italian ahl-fawn-saw] /ælˈfɒn soʊ;; Italian ɑlˈfɔn sɔ/ (Show IPA), 1822–76, Italian anatomist.
Croft: noun, a small farm, especially one worked by a tenant.
conto: noun, a money of account of Portugal and Cape Verde, equal to 1000 escudos.
Maori: noun, a member of the native Polynesian population of New Zealand.
intr.
rabot: noun, a hardwood block used for rubbing marble before polishing.
Ronco: noun, any grunt of the genus Haemulon, especially H. parrai, the sailor's-choice, of West Indian waters.
Roman: noun, a metrical narrative, especially in medieval French literature.
robot: noun, a machine that resembles a human and does mechanical, routine tasks on command.
Robin: noun, any of several small Old World birds having a red or reddish breast, especially Erithacus rubecula, of Europe.
ribat: noun, a building housing a community of Sufis.
riata: noun, a lariat.
riant: adjective, laughing; smiling; cheerful.
ratio: noun, the relation between two similar magnitudes with respect to the number of times the first contains the second:
ratan: noun, rattan.
Ramon: noun, any of several tropical American trees belonging to the genus Brosimum, of the mulberry family, the leaves of which are used as forage, especially B. alicastrum, which bears the breadnut.
Rambo: noun, a fanatically militant or violently aggressive person.
Raman: noun, Sir Chandrasekhara Venkata [chuhn-druh-shey-ker-uh veng-kuh-tuh] /ˈtʃʌn drəˈʃeɪ kər ə ˈvɛŋ kə tə/ (Show IPA), 1888–1970, Indian physicist: Nobel prize 1930.
racon: noun, radar beacon.
Rabin: noun, Yitzhak [yits-khahk] /yɪtsˈxɑk/ (Show IPA), 1922–95, Israeli military and political leader: prime minister 1974–77 and 1992–95: Nobel Peace Prize 1994.
taboo: noun, a prohibition or interdiction of anything; exclusion from use or practice: Synonyms: ban, proscription, embargo, interdiction; no-no.
Rabat: noun, a sleeveless, backless, vestlike garment extending to the waist, worn by a cleric beneath the clerical collar, especially in the Roman Catholic and Anglican churches.
Otomi: noun, a member of an American Indian people of south-central Mexico.
Orton: noun, Joe (John Kingsley Orton) 1933–67, English playwright.
Orion: noun, Classical Mythology. a giant hunter who pursued the Pleiades, was eventually slain by Artemis, and was then placed in the sky as a constellation.
orbit: noun, the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.
orant: noun, a representation of a female figure, with outstretched arms and palms up in a gesture of prayer, in ancient and early Christian art.
onto-
ontic: adjective, possessing the character of real rather than phenomenal existence; noumenal.
onco-
omni-
Omani: noun, a native or inhabitant of Oman.
octo-
octan: noun, an octan fever.
octa-
rooti: noun, rooty2 .
Tabor: noun, a small drum formerly used to accompany oneself on a pipe or fife.
Obama: noun, Barack (Hussein), Jr [buh-rahk hoo-seyn] /bəˈrɑk huˈseɪn/ (Show IPA), born 1961, 44th president of the U.S. since 2009.
Tobin: noun, James, 1918–2002, U.S. economist: Nobel prize 1981.
trick: noun, a crafty or underhanded device, maneuver, stratagem, or the like, intended to deceive or cheat; artifice; ruse; wile.
triac: noun, a type of thyristor designed for electronic control of the current supplied to a circuit, used especially in dimmers for lighting systems.
trank: noun, a tranquilizer.
trama: noun, a specialized hyphal tissue constituting the internal structure of mushroom gills, pore tubes, or spines.
train: noun, Railroads. a self-propelled, connected group of rolling stock.
traik: verb (used without object), to become ill or lose one's good health.
toric: adjective, noting or pertaining to a lens with a surface forming a portion of a torus, used for eyeglasses and contact lenses that correct astigmatism.
toran: noun, (in Indian Buddhist and Hindu architecture) a gateway having two or three lintels between two posts.
tono-
tonic: noun, a medicine that invigorates or strengthens:
tonia
tomia: noun, the cutting edge of a bird's bill.
toman: noun, a coin of Iran, equal to 10 rials.
T-man: noun, a special investigator of the Department of the Treasury.
tafia: noun, a type of rum made in Haiti from lower grades of molasses, refuse sugar, or the like.
Tiran: noun, Strait of, a navigable waterway between the N Red Sea and the Gulf of Aqaba.
Timor: noun, an island in the S part of Indonesia: largest and easternmost of the Lesser Sunda Islands; E half formerly belonged to Portugal. 13,095 sq. mi. (33,913 sq. km).
Timon: noun, c320–c230 b.c, Greek philosopher.
tiara: noun, a jeweled, ornamental coronet worn by women.
T-bar: noun, a rolled metal bar or beam with a cross section resembling a T .
tarok: noun, a card game dating probably from the Renaissance and still popular in central Europe, originally played with a special pack of 78 cards but now usually played with 32 cards of a regular pack together with 22 tarots.
Tarim: noun, a river in NW China, in Xinjiang Uygur region. About 1300 miles (2090 km) long.
Tarai: noun, Terai.
tanka: noun, a Japanese poem consisting of 31 syllables in 5 lines, with 5 syllables in the first and third lines and 7 in the others.
tambo: noun, Mr. Tambo.
Tamar: noun, the daughter of David and half-sister of Absalom. II Sam. 13.
takin: noun, a mountain-dwelling bovid, Budorcas taxicolor, native to the eastern Himalayas, China, and northern Burma, that resembles a cross between a goat and a musk ox.
Taira: noun, a member of a powerful family in Japan that ruled the country 1160–85.
Taino: noun, a member of an extinct Arawakan Indian tribe of the West Indies.
OBrit
noto-
Iran.
Macao: noun, a Portuguese overseas territory in S China, in the delta of the Zhu Jiang River and including two small adjacent islands. 6 sq. mi. (16 sq. km).
Maria: noun, calaba.
Marat: noun, Jean Paul [zhahn-pawl] /ʒɑ̃ pɔl/ (Show IPA), 1743–93, French politician and journalist: leader in the French Revolution; assassinated by Charlotte Corday d'Armont.
Manta: noun, (in Spain and Spanish America) a cloak or wrap.
manor: noun, (in England) a landed estate or territorial unit, originally of the nature of a feudal lordship, consisting of a lord's demesne and of lands within which he has the right to exercise certain privileges, exact certain fees, etc.
manit: noun, man-minute.
manic: adjective, pertaining to or affected by mania.
mania: noun, excessive excitement or enthusiasm; craze:
Manat: noun, a pre-Islamic Arabian goddess personifying fortune, sometimes considered a daughter of Allah.
manak: noun, a wooden ball fitted with hooks and attached to a rope, used by Eskimos to secure and haul in seals killed offshore.
makar: noun, a poet or writer.
mafic: adjective, of or relating to rocks rich in dark, ferromagnesian minerals. Compare basic (def 4), ultramafic.
Mafia: noun, a hierarchically structured secret organization allegedly engaged in smuggling, racketeering, trafficking in narcotics, and other criminal activities in the U.S., Italy, and elsewhere.
Macon: noun, Nathaniel, 1758–1837, U.S. politician: Speaker of the House 1801–07.
kroon: noun, an aluminum bronze coin and monetary unit of Estonia from 1928 to 1940 and from 1992 to 2010, when it was replaced by the euro, equal to 100 marks or senti.
Mario: noun, a male given name: from the Roman family name Marius.
krona: noun, a silver and cupronickel coin and monetary unit of Sweden, equal to 100 öre. Abbreviation: Kr., kr.
krait: noun, any of several large, usually banded, placid but highly venomous snakes constituting the genus Bungarus, of the cobra family, common in southeastern Asia and the Malay Archipelago.
Kraft: noun, a strong, usually brown paper processed from wood pulp, used chiefly for bags and as wrapping paper.
Koran: noun, the sacred text of Islam, divided into 114 chapters, or suras: revered as the word of God, dictated to Muhammad by the archangel Gabriel, and accepted as the foundation of Islamic law, religion, culture, and politics.
Konia: noun, Konya.
Kioto: noun, Kyoto.
Katar: noun, Qatar.
kata-
Karoo: noun, a vast plateau in the Republic of South Africa, in Cape of Good Hope province. 100,000 sq. mi. (260,000 sq. km); 3000–4000 feet (900–1200 meters) above sea level.
Karma: noun, Hinduism, Buddhism. action, seen as bringing upon oneself inevitable results, good or bad, either in this life or in a reincarnation: in Hinduism one of the means of reaching Brahman. Compare bhakti (def 1), jnana.
karat: noun, a unit for measuring the fineness of gold, pure gold being 24 karats fine. Abbreviation: k., kt.
Kamba: noun, an agricultural people of central Kenya, renowned as traders and woodcarvers.
Kafir: noun, Also called Nuristani. a member of an Indo-European people of Nuristan.
Kabir: noun, fl. late 15th century, Hindu religious reformer.
Marin: noun, John, 1870–1953, U.S. painter and etcher.
marka: noun, the basic monetary unit of Bosnia and Herzegovina, equal to 100 pfenigs.
Norma: noun, the Rule, a small southern constellation between Lupus and Ara.
moron: noun, Informal. a person who is notably stupid or lacking in good judgment:
noria: noun, a device consisting of a series of buckets on a wheel, used in Spain and the East for raising water.
Norco: noun, a town in S California.
nomo-
noct-
Nkomo: noun, Joshua Mquabuko Nyongolo [uh m-kwah-boo-koh nyong-goh-loh] /əm kwɑˈbu koʊ nyɒŋˈgoʊ loʊ/ (Show IPA), 1917–1999, African nationalist and political leader in Zimbabwe.
nitr-
Niort: noun, a city in and the capital of Deux-Sèvres, in W France.
Naomi: noun, the mother-in-law of Ruth and the great-grandmother of David. Ruth 1.
naira: noun, a paper money and monetary unit of Nigeria, equal to 100 kobo: replaced the pound in 1973.
Naima: noun, a female given name: from an Arabic word meaning “benevolent.”.
NAAFI: noun, Navy, Army, and Air Force Institutes: an organization that provides social facilities, stores, etc., to British military personnel.
motor: noun, a comparatively small and powerful engine, especially an internal-combustion engine in an automobile, motorboat, or the like.
moton: noun, besague.
motif: noun, a recurring subject, theme, idea, etc., especially in a literary, artistic, or musical work.
Mont.
Maroc: noun, French name of Morocco.
mono-
monic: adjective, (of a polynomial) having the coefficient of the term of highest degree equal to 1.
Monck: noun, Sir Charles Stanley (4th Viscount Monck, 1st Baron Monck) 1819–94, British colonial administrator, born in Ireland: governor general of Canada 1861–68.
Moira: noun, Classical Mythology. the personification of fate. Moirai, the Fates.
Mitra: noun, the mitriform pileus of certain fungi.
Minto: noun, Gilbert John Elliot-Murray-Kynynmond [el-ee-uh t-mur-ee-ki-nin-muh nd,, -muhr-ee-,, el-yuh t-] /ˈɛl i ətˈmɜr i kɪˈnɪn mənd,, -ˈmʌr i-,, ˈɛl yət-/ (Show IPA), 4th Earl of, 1845–1914, British colonial administrator: governor general of Canada 1898–1904; viceroy of India 1905–10.
Minot: noun, George Richards [rich-erdz] /ˈrɪtʃ ərdz/ (Show IPA), 1885–1950, U.S. physician: Nobel prize 1934.
Minor: noun, a person under the legal age of full responsibility.
micra: noun, a plural of micron.
mbira: noun, a musical instrument of Africa usually made out of a gourd that serves as a resonating box, to which vibrating metal or wooden strips are attached for plucking.
matr-
matin: noun, (often initial capital letter) matins, Also, especially British, mattins. (usually used with a singular verb) Ecclesiastical. the first of the seven canonical hours. the service for it, properly beginning at midnight, but sometimes beginning at daybreak. Also called Morning Prayer. the service of public prayer, said in the morning, in the Anglican Church.
Marti: noun, José [haw-se] /hɔˈsɛ/ (Show IPA), 1853–1895, Cuban patriot and writer.
Marta: noun, a female given name.
combo: noun, Informal. a small jazz or dance band. Compare big band. combination (defs 2–4).
Trona: noun, a monoclinic mineral, grayish or yellowish hydrous sodium carbonate and bicarbonate, Na 2 CO 3 ⋅NaHCO 3 ⋅2H 2 , occurring in dried or partly evaporated lake basins.
comb.
aboon: adverb, preposition, above.
broom: noun, an implement for sweeping, consisting of a brush of straw or stiff strands of synthetic material bound tightly to the end of a long handle.
Brook: noun, a small, natural stream of fresh water.
bronc: noun, bronco:
brom-
Brock: noun, a European badger.
Broca: noun, Paul [pawl] /pɔl/ (Show IPA), 1824–80, French surgeon and anthropologist.
ation
abort: noun, a missile, rocket, etc., that has aborted.
Akron: noun, a city in NE Ohio.
Brit.
Brink: noun, the edge or margin of a steep place or of land bordering water.
Brick: noun, a block of clay hardened by drying in the sun or burning in a kiln, and used for building, paving, etc.: traditionally, in the U.S., a rectangle 2.25 × 3.75 × 8 inches (5.7 × 9.5 × 20.3 cm), red, brown, or yellow in color.
Brian: noun, a male given name.
Abram: noun, an earlier name of Abraham. Gen. 17:5.
Akbar: noun, ("the Great"; Jalal-ud-Din Mohammed) 1542–1605, Mogul emperor of India 1556–1605.
Atman: noun, the principle of life.
atmo-
Akita: noun, a seaport on N Honshu, in N Japan, on the Sea of Japan.
amain: adverb, with full force.
brank: verb (used without object), to hold up and toss the head, as a horse when spurning the bit or prancing.
cabin: noun, a small house or cottage, usually of simple design and construction:
ambi-
Arab.
Camb.
cakra: noun, any of the points of spiritual power located along the body, usually given as six in number. The points are personified by gods and can be released through the proper exercises.
Cairo: noun, a city in and the capital of Egypt, in the N part on the E bank of the Nile.
cairn: noun, a heap of stones set up as a landmark, monument, tombstone, etc.
Cabot: noun, John (Giovanni Caboto) c1450–98? Italian navigator in the service of England: discoverer of North American mainland 1497.
Aaron: noun, the older brother of Moses, usually regarded as the first high priest of the Hebrews. Ex. 28; 40:13–16.
Amati: noun, Nicolò [nee-kaw-law] /ˌni kɔˈlɔ/ (Show IPA), 1596–1684, Italian violinmaker, one of a famous family of 16th- and 17th-century violinmakers: teacher of Antonio Stradivari.
aback: Idioms, taken aback, surprised and disconcerted:
arian: noun, an adherent of Arianism.
Arica: noun, a seaport in N Chile.
Arion: noun, flourished 7th century b.c, Greek poet: inventor of the dithyramb.
Abaco: noun, two islands (Great Abaco and Little Abaco) in the N Bahamas. 776 sq. mi. (2010 sq. km).
aroma: noun, an odor arising from spices, plants, cooking, etc., especially an agreeable odor; fragrance.
abaft: adverb, in the direction of the stern; astern; aft.
Amato: noun, Pasquale [puh-skwah-lee,, -ley;; Italian pahs-kwah-le] /pəˈskwɑ li,, -leɪ;; Italian pɑsˈkwɑ lɛ/ (Show IPA), 1879–1942, Italian operatic baritone.
Brant: noun, any of several species of small, dark-colored geese of the genus Branta, especially B. bernicla, breeding in high northern latitudes and migrating south in the autumn.
atria: noun, Architecture. Also called cavaedium. the main or central room of an ancient Roman house, open to the sky at the center and usually having a pool for the collection of rain water. a courtyard, flanked or surrounded by porticoes, in front of an early or medieval Christian church. a skylit central court in a contemporary building or house.
canto: noun, one of the main or larger divisions of a long poem.
Baton: noun, Music. a wand used by a conductor.
Acton: noun, a quilted garment worn under mail in the 13th and 14th centuries; gambeson.
Bart.
Batak: noun, a member of a group of people chiefly inhabiting north-central Sumatra.
Actor: noun, a person who acts in stage plays, motion pictures, television broadcasts, etc.
Borak: noun, ridicule.
batik: noun, a technique of hand-dyeing fabrics by using wax as a dye repellent to cover parts of a design, dyeing the uncovered fabric with a color or colors, and dissolving the wax in boiling water.
Batna: noun, a city in NE Algeria.
Aimak: noun, one of the 18 largest regions into which the Mongolian People's Republic is divided for administrative purposes.
baro-
biont
Biota: noun, the animals, plants, fungi, etc., of a region or period.
Boito: noun, Arrigo [uh-ree-goh;; Italian ahr-ree-gaw] /əˈri goʊ;; Italian ɑrˈri gɔ/ (Show IPA), 1842–1918, Italian opera composer, poet, and novelist.
boart: noun, bort.
afoot: adverb, adjective, on foot; walking:
Afric: adjective, African.
afrit: noun, afreet.
AFTRA
Baron: noun, a member of the lowest grade of nobility.
boric: adjective, of or containing boron; boracic.
abrin: noun, a highly poisonous protein found in the seeds of the rosary pea: inhibits protein synthesis, causing symptoms such as internal bleeding, intestinal upset, and irritation of mucous membranes.
acro-
Bacon: noun, the back and sides of the hog, salted and dried or smoked, usually sliced thin and fried for food.
acari: noun, plural of acarus.
bact.
bairn: noun, a child; son or daughter.
Acoma: noun, a Pueblo Indian village near Albuquerque, New Mexico, built on a sandstone mesa: oldest continuously inhabited location in the U.S.
acorn: noun, the typically ovoid fruit or nut of an oak, enclosed at the base by a cupule.
Banat: noun, a fertile low-lying region extending through parts of Hungary, Romania, and Serbia.
Banco: noun, a declaration made by a bettor in certain gambling games, as baccarat and chemin de fer, indicating a bet matching the full amount in the bank, to the exclusion of all previous lower bets: often used as an interjection.
bania: noun, banyan (def 2).
boro-
Banka: noun, Bangka.
acron: noun, the unsegmented, preoral portion of the body of an arthropod.
brain: noun, Anatomy, Zoology. the part of the central nervous system enclosed in the cranium of humans and other vertebrates, consisting of a soft, convoluted mass of gray and white matter and serving to control and coordinate the mental and physical actions.
bract: noun, a specialized leaf or leaflike part, usually situated at the base of a flower or inflorescence.
Barak: noun, a military commander who, with Deborah, destroyed the Canaanite army under Sisera. Judges 4.
Barca: noun, an ancient Carthaginian family to which Hamilcar, Hasdrubal, and Hannibal belonged.
boron: noun, a nonmetallic element occurring naturally only in combination, as in borax or boric acid, and obtained in either an amorphous or a crystalline form when reduced from its compounds. Symbol: B; atomic weight: 10.811; atomic number: 5.
baric: adjective, of or containing barium.
Cant.
Afro-
anti-
carb-
anim.
Caria: noun, an ancient district in SW Asia Minor.
carob: noun, a Mediterranean tree, Ceratonia siliqua, of the legume family, bearing long, leathery pods containing hard seeds and sweet, edible pulp.
anoia: noun, extreme mental deficiency.
carom: noun, Billiards, Pool. a shot in which the cue ball hits two balls in succession.
Anoka: noun, a city in E Minnesota.
Cobra: noun, any of several highly venomous, Old World elapid snakes of the genera Naja and Ophiophagus, characterized by the ability to flatten the neck into a hoodlike form when disturbed.
Carib: noun, a member of a group of Indian peoples formerly dominant through the Lesser Antilles, now found in small numbers in a few areas of the West Indies and in parts of Central America and northeastern South America.
30-30
cobia: noun, a large, fusiform fish, Rachycentron canadum, found off the eastern coast of temperate and tropical America, in the East Indies, and in Japan.
amin-
antic: noun, Usually, antics. a playful trick or prank; caper. a grotesque, fantastic, or ludicrous gesture, act, or posture.
Amora: noun, one of a group of Jewish scholars, active in the rabbinical academies of Palestine and Babylonia from the 3rd to the 6th centuries a.d., whose commentaries on and interpretations of the Mishnah comprise the Palestinian and Babylonian Gemaras.
cata-
carat: noun, a unit of weight in gemstones, 200 milligrams (about 3 grains of troy or avoirdupois weight). Abbreviation: c., ct.
coati: noun, any tropical American carnivore of the genus Nasua, related to the raccoon, having an elongated body, long, ringed tail, and a slender, flexible snout.
Ciano: noun, Count Galeazzo [gah-le-aht-tsaw] /ˌgɑ lɛˈɑt tsɔ/ (Show IPA), (Ciano di Cortellazzo) 1903–44, Italian Fascist statesman: minister of foreign affairs 1936–43.
Carin: noun, a female given name.
anat.
Cimon: noun, 507–499 b.c, Athenian military leader, naval commander, and statesman (son of Miltiades).
Anita: noun, a female given name: Spanish form of Anna.
aorta: noun, the main trunk of the arterial system, conveying blood from the left ventricle of the heart to all of the body except the lungs.
AMORC
amort: adjective, spiritless; lifeless.
Coamo: noun, a city in S central Puerto Rico.
ambit: noun, circumference; circuit.
anima: noun, soul; life.
Ambon: noun, ambo.

4 letter words you can make with back-formation

Mani: noun, Manes.
Bari: noun, a seaport in SE Italy, on the Adriatic.
Oman: noun, Sultanate of. Formerly Muscat and Oman. an independent sultanate in SE Arabia. About 82,800 sq. mi. (212,380 sq. km). Capital: Muscat.
NRAB
okra: noun, a shrub, Abelmoschus esculentus, of the mallow family, bearing beaked pods.
bark: noun, the abrupt, harsh, explosive cry of a dog.
not-
anba: noun, father: a title of a clergyman or saint in the Coptic Church.
nota: noun, a dorsal plate or sclerite of the thorax of an insect.
barm: noun, yeast formed on malt liquors while fermenting.
Barn: noun, a building for storing hay, grain, etc., and often for housing livestock.
Orca: noun, the killer whale, Orcinus orca.
bar.
Mano: noun, the upper or handheld stone used when grinding maize or other grains on a metate.
Bank: noun, a long pile or heap; mass:
ano-
noir: adjective, black; noting the black numbers in roulette.
nom.
bait: noun, food, or some substitute, used as a lure in fishing, trapping, etc.
Mari: noun, a member of a Uralic people living in scattered communities north of Cheboksary and Kazan in European Russia, mainly in the Mari Autonomous Soviet Socialist Republic.
Noma: noun, a gangrenous ulceration of the mouth or genitalia, occurring mainly in debilitated children.
banc: noun, the seat on which judges sit in court.
bani: noun, plural of ban4 .
nook: noun, a corner, as in a room.
Nor.
Norm: noun, a standard, model, or pattern.
MARC: noun, the grapes contained in the wine press and the residue, as skins and pips, remaining after the juice is expressed.
Nora: noun, a female given name, form of Honora.
bant: verb (used without object), to lose weight by practicing Bantingism.
Mara: noun, Hindu Mythology. the god of death, sometimes seen as one aspect of a god whose other aspect is Kama, or erotic desire.
Omar: noun, a male given name.
Mar.
Bara: noun, Theda [thee-duh] /ˈθi də/ (Show IPA), (Theodosia Goodman) 1890–1955, U.S. actress.
nori: noun, a seaweed having a mildly sweet, salty taste, usually dried, used in Japanese cookery mainly as a wrap for sushi.
Amon: noun, Amen.
barf: verb, noun, vomit.
NTIA
Maia: noun, the eldest of the Pleiades and the mother of Hermes by Zeus.
Mana: noun, a generalized, supernatural force or power, which may be concentrated in objects or persons.
Knt.
koto: noun, a Japanese musical instrument having numerous strings, usually seven or thirteen, that are stretched over a convex wooden sounding board and are plucked with three plectra, worn on the thumb, index finger, and middle finger of one hand.
Rina: noun, a female given name.
rink: noun, a smooth expanse of ice for ice-skating, often artificially prepared and inside a building or arena.
riot: noun, a noisy, violent public disorder caused by a group or crowd of persons, as by a crowd protesting against another group, a government policy, etc., in the streets.
rit.
RITA: noun, the Vedic concept of cosmic and social order.
Kona: noun, a southwesterly winter wind in Hawaii, often strong and bringing rain.
Komi: noun, a member of a Uralic people of northeastern European Russia.
kobo: noun, a bronze coin and monetary unit of Nigeria, the 100th part of a naira.
koan: noun, a nonsensical or paradoxical question to a student for which an answer is demanded, the stress of meditation on the question often being illuminating.
knot: noun, an interlacing, twining, looping, etc., of a cord, rope, or the like, drawn tight into a knob or lump, for fastening, binding, or connecting two cords together or a cord to something else.
Birk: noun, adjective, verb (used with object), birch.
knob: noun, a projecting part, usually rounded, forming the handle of a door, drawer, or the like.
knit: noun, fabric produced by knitting.
obit: noun, Informal. an obituary.
knar: noun, a knot on a tree or in wood.
Anam: noun, Annam.
amt.
roam: noun, an act or instance of roaming; a ramble.
roan: noun, a horse or other animal with a roan coat.
kirn: noun, a churn.
BMOC
Rima: noun, a female given name.
kran: noun, a former silver coin of Iran.
Oita: noun, a seaport on NE Kyushu, in S Japan.
bin-
Man.
mako: noun, a powerful mackerel shark, Isurus oxyrinchus, of the Atlantic and Pacific oceans.
oink: noun, the squealing or grunting sound made by a pig.
Mair: adjective, noun, adverb, more.
Main: noun, a principal pipe or duct in a system used to distribute water, gas, etc.
amok: noun, (among members of certain Southeast Asian cultures) a psychic disturbance characterized by depression followed by a manic urge to murder.
Amor: noun, Cupid.
maco: noun, an Egyptian cotton, used especially in the manufacture of hosiery and undergarments.
Mack: noun, a pimp.
Biak: noun, an island N of Irian Barat, in Indonesia. 948 sq. mi. (2455 sq. km).
bint: noun, a contemptuous term used to refer to a woman or girl.
Krio: noun, an English-based creole of Sierra Leone, a first language of the residents of Freetown and its environs, and a lingua franca elsewhere in the country.
bio-
Mac-
Maat: noun, the goddess personifying law and righteousness.
maar: noun, a circular volcanic landform resulting from explosive ash eruptions.
M-16: noun, a lightweight, fully automatic rifle shooting a small-caliber bullet at an extremely high velocity: a U.S. Army combat weapon for mobile units and jungle fighting.
M-14: noun, a fully automatic, gas-operated, .30 caliber rifle developed from the M-1: replaced the M-1 as the standard U.S. Army combat rifle.
Rick: noun, Also, hayrick. Chiefly Midland U.S. a large, usually rectangular stack or pile of hay, straw, corn, or the like, in a field, especially when thatched or covered by a tarpaulin; an outdoor or makeshift mow.
Rico: noun, Racketeer Influenced and Corrupt Organizations Act: a U.S. law, enacted in 1970, allowing victims of organized crime to sue those responsible for punitive damages.
rift: noun, an opening made by splitting, cleaving, etc.; fissure; cleft; chink.
Bion: noun, flourished c100 b.c, Greek pastoral poet.
nock: noun, a metal or plastic piece at the end of an arrow, having a notch for the bowstring.
Rani: noun, ranee.
Mark: noun, a visible impression or trace on something, as a line, cut, dent, stain, or bruise:
Arno: noun, Peter (Curtis Arnoux Peters) 1904–68, U.S. cartoonist and author.
Aria: noun, an air or melody.
Aoki: noun, Shuzo [shoo-zaw] /ˈʃu zɔ/ (Show IPA), 1844–1914, first Japanese ambassador to U.S., 1905–09.
Nama: noun, a member of a Khoikhoi people of Namaqualand, in SW Africa.
A-OK: adjective, adverb, Informal. OK; perfect:
Nara: noun, a city on S Honshu, in central Japan: chief Buddhist center of ancient Japan; first capital of Japan a.d. 710–84.
Monk: noun, (in Christianity) a man who has withdrawn from the world for religious reasons, especially as a member of an order of cenobites living according to a particular rule and under vows of poverty, chastity, and obedience.
narc: noun, a government agent or detective charged with the enforcement of laws restricting the use of narcotics.
Ark.
Arm.
Mona: noun, a female given name.
Moon: noun, the earth's natural satellite, orbiting the earth at a mean distance of 238,857 miles (384,393 km) and having a diameter of 2160 miles (3476 km).
Mon.
moki: noun, Hopi (def 1).
moit: noun, a foreign particle found in wool, as a burr, twig, or seed.
Aron: noun, a male given name.
Raab: noun, broccoli rabe.
mock: noun, a contemptuous or derisive imitative action or speech; mockery or derision.
moat: noun, a deep, wide trench, usually filled with water, surrounding the rampart of a fortified place, as a town or a castle.
moan: noun, a prolonged, low, inarticulate sound uttered from or as if from physical or mental suffering.
Moab: noun, an ancient kingdom E of the Dead Sea, in what is now Jordan.
Rabi: noun, Isidor Isaac, 1898–1988, U.S. physicist: Nobel prize 1944.
Mook: noun, a contemptible, incompetent person.
Nair: noun, a group of Hindu castes in the Kerala region of India.
mkt.
Mort: noun, Hunting. the note played on a hunting horn signifying that the animal hunted has been killed.
ambo: noun, (in an early Christian church) a raised desk, or either of two such desks, from which the Gospels or Epistles were read or chanted.
oro-
AMBA: noun, anba.
mRNA
otic: adjective, of or relating to the ear; auricular.
oto-
Arak: noun, arrack.
Oran: noun, a seaport in NW Algeria.
Aram: noun, Biblical name of ancient Syria.
RAAF
NACA
Moor: noun, a tract of open, peaty, wasteland, often overgrown with heath, common in high latitudes and altitudes where drainage is poor; heath.
arca: noun, a chest for valuables, used in medieval Spain and Italy.
naif: noun, a naive or inexperienced person.
ARCO: adverb, (of the performance of a passage for stringed instruments) with the bow.
Moro: noun, a member of any of the various tribes of Muslim Malays in the southern Philippines.
morn: noun, morning.
RCAF
Oona: noun, a female given name.
Mora: noun, the unit of time equivalent to the ordinary or normal short sound or syllable.
RIBA
moot: noun, an assembly of the people in early England exercising political, administrative, and judicial powers.
Aman: noun, Haman.
art.
RATO: noun, rocket-assisted takeoff.
1080
ant.
rain: noun, water that is condensed from the aqueous vapor in the atmosphere and falls to earth in drops more than 1/50 inch (0.5 mm) in diameter. Compare drizzle (def 6).
NIRA
Akin: adjective, of kin; related by blood (usually used predicatively):
raki: noun, a spirituous liquor distilled from grain, grapes, plums, etc., in southeastern Europe and the Near East.
Rama: noun, (in the Ramayana) any of the three avatars of Vishnu: Balarama, Parashurama, or Ramachandra.
anoa: noun, a small forest buffalo, Bubalus (Anoa) depressicornis, of the island of Celebes, having a brown coat and straight, sharp-tipped horns: an endangered species.
rami: noun, plural of ramus.
Omri: noun, a king of Israel and the father of Ahab. I Kings 16:16–28.
Akan: noun, a language of the Kwa branch of Niger-Congo spoken in much of Ghana and parts of the Ivory Coast.
Amir: noun, emir.
Nick: noun, a small notch, groove, chip, or the like, cut into or existing in something.
atom: noun, Physics. the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical attraction; the number of protons determines the identity of the element. an atom with one of the electrons replaced by some other particle:
Aton: noun, a solar deity declared by Amenhotep IV to be the only god, represented as a solar disk with rays ending in human hands.
ator
omit: verb (used with object), to leave out; fail to include or mention:
Rank: noun, a number of persons forming a separate class in a social hierarchy or in any graded body.
NOAA
rant: noun, ranting, extravagant, or violent declamation.
raob: noun, Meteorology. a radiosonde or rawinsonde observation.
Mart: noun, market; trading center; trade center.
airt: noun, a direction.
Raia: noun, rayah.
Miao: noun, Also, Meo. a member of a diverse group of seminomadic farming people of the mountains of southeastern China and adjacent areas of Laos, North Vietnam, and Thailand.
Mita: noun, a colonial system in Peru by which the Spanish government required Indians to perform periodic forced labor, especially in the mines.
Mina: noun, an ancient unit of weight and value equal to the sixtieth part of a talent.
rack: noun, a framework of bars, wires, or pegs on which articles are arranged or deposited:
Miro: noun, Gabriel [gah-vree-el] /ˌgɑ vriˈɛl/ (Show IPA), 1879–1930, Spanish novelist, short-story writer, and essayist.
mirk: noun, darkness; gloom:
Mira: noun, Astronomy. the first long-period pulsating variable star to be discovered, with a period averaging 331 days. It is a red giant and a component of a binary star in the constellation Cetus.
nark: noun, British Slang. a stool pigeon or informer.
mint: noun, any aromatic herb of the genus Mentha, having opposite leaves and small, whorled flowers, as the spearmint and peppermint. Compare mint family.
Oct.
atar: noun, attar (def 1).
Mino: noun, Minho.
mink: noun, a semiaquatic weasellike animal of the genus Mustela, especially the North American M. vison.
min.
Mic.
coma: noun, a state of prolonged unconsciousness, including a lack of response to stimuli, from which it is impossible to rouse a person.
raft: noun, a more or less rigid floating platform made of buoyant material or materials:
atic
ANTA: noun, a privately supported organization, chartered by Congress in 1935, for the encouragement and advancement of professional and nonprofessional theater.
NATO: noun, an organization formed in Washington, D.C. (1949), comprising the 12 nations of the Atlantic Pact together with Greece, Turkey, and the Federal Republic of Germany, for the purpose of collective defense against aggression.
NCAA
amic: adjective, of or relating to an amide or amine.
Ont.
Mick: noun, a contemptuous term for a person of Irish birth or descent.
mica: noun, any member of a group of minerals, hydrous silicates of aluminum with other bases, chiefly potassium, magnesium, iron, and lithium, that separate readily into thin, tough, often transparent, and usually elastic laminae; isinglass.
atm.
kino: noun, (in Europe) a motion-picture theater; cinema.
kina: noun, a cupronickel coin and monetary unit of Papua New Guinea, equal to 100 toea.
fiat: noun, an authoritative decree, sanction, or order: Synonyms: authorization, directive, ruling, mandate, diktat, ukase.
ABFM
firm: noun, a partnership or association for carrying on a business.
TINA: noun, a female given name.
Fino: noun, a pale, very dry sherry of Spain.
tion
Fink: noun, a strikebreaker.
Fin.
fict
fico: noun, fig1 (def 4).
FICA
Tiro: noun, tyro.
Tob.
tick: noun, a slight, sharp, recurring click, tap, or beat, as of a clock.
tomb: noun, an excavation in earth or rock for the burial of a corpse; grave.
fart: noun, a flatus expelled through the anus.
Faro: noun, a gambling game in which players place bets on a special board or layout, betting on each series of two cards as they are drawn from a box containing the dealer's or banker's pack.
farm: noun, a tract of land, usually with a house, barn, silo, etc., on which crops and often livestock are raised for livelihood.
Toni: noun, a female given name, form of Antoinette or Antonia.
Cain: noun, Scot. and Irish English. rent paid in kind, especially a percentage of a farm crop.
Fano: noun, a town in central Italy, on the Adriatic Sea: cathedral; Roman ruins.
fana: noun, the ecstatic union of the Sufi with the Divine.
tonk: noun, a form of rummy for two or more players with deuces wild.
Fair: noun, Archaic. something that is fair.
Cami: noun, camisole (def 1).
fain: adverb, gladly; willingly:
firn: noun, névé.
FNMA
Cana: noun, an ancient town in N Israel, in Galilee: scene of Jesus' first miracle. John 2:1, 11.
Brno: noun, a city in S Moravia, in the SE Czech Republic: former capital of Moravia.
abri: noun, a shelter, especially a dugout.
frt.
from: preposition, (used to specify a starting point in spatial movement):
BRAT: noun, a child, especially an annoying, spoiled, or impolite child (usually used in contempt or irritation).
Tara: noun, a village in the NE Republic of Ireland, NW of Dublin: home of the ancient Irish kings (Hill of Tara)
frit: noun, Ceramics. a fused or partially fused material used as a basis for glazes or enamels. the composition from which artificial soft porcelain is made.
BRCA: noun, either of two genes (BRCA1 or BRCA2) that, if inherited in a mutated form, may predispose some carriers to develop breast or ovarian cancer.
Fri.
abr.
frat: noun, fraternity (def 1).
brim: noun, the upper edge of anything hollow; rim; brink:
brio: noun, vigor; vivacity.
Fran: noun, a male given name, form of Francis.
foam: noun, a collection of minute bubbles formed on the surface of a liquid by agitation, fermentation, etc.:
Tarn: noun, a small mountain lake or pool, especially one in a cirque.
Taro: noun, a stemless plant, Colocasia esculenta, of the arum family, cultivated in tropical regions, in the Pacific islands and elsewhere, for the edible tuber.
fork: noun, an instrument having two or more prongs or tines, for holding, lifting, etc., as an implement for handling food or any of various agricultural tools.
forb: noun, any herb that is not a grass or grasslike.
fora: noun, a plural of forum.
for.
Foot: noun, (in vertebrates) the terminal part of the leg, below the ankle joint, on which the body stands and moves.
font: noun, a receptacle, usually of stone, as in a baptistery or church, containing the water used in baptism.
TCBM
foin: noun, a thrust with a weapon.
FOIA
foci: noun, a plural of focus.
Can.
fact: noun, something that actually exists; reality; truth:
IOOF
Cook: noun, a person who cooks:
corf: noun, Mining. a small wagon for carrying coal, ore, etc. a wicker basket formerly used for this purpose.
cion: noun, scion (def 2).
cir.
cit.
trim: noun, the condition, order, or fitness of a person or thing for action, work, use, etc.
Cora: noun, Classical Mythology. Kore.
Cor.
coot: noun, any aquatic bird of the genus Fulica, as F. americana, of North America, and F. atra, of the Old World, characterized by lobate toes and short wings and tail.
coon: noun, raccoon.
Trio: noun, a musical composition for three voices or instruments.
coom: noun, soot; coal dust; smut.
coof: noun, a silly or stupid person.
TRIB
tRNA
Cmon
coak: noun, (in a scarf joint) a tenon in one member fitting into a corresponding recess of the other.
conk: noun, the head.
coat: noun, an outer garment with sleeves, covering at least the upper part of the body:
tron
Con.
coif: noun, a hood-shaped cap, usually of white cloth and with extended sides, worn beneath a veil, as by nuns.
coin: noun, a piece of metal stamped and issued by the authority of a government for use as money.
coir: noun, the prepared fiber of the husk of the coconut fruit, used in making rope, matting, etc.
Como: noun, Lake, a lake in N Italy, in Lombardy. 35 miles (56 km) long; 56 sq. mi. (145 sq. km).
Com.
Cori: noun, Carl Ferdinand, 1896–1984, and his wife, Gerty Theresa, 1896–1957, U.S. biochemists, born in Austria-Hungary: Nobel Prize in Medicine 1947.
Cork: noun, the outer bark of an oak, Quercus suber, of Mediterranean countries, used for making stoppers for bottles, floats, etc.
CanF
Carn: noun, cairn.
fac.
took: noun, the act of taking.
toom: adjective, empty; vacant.
toon: noun, an Asian tree, Cedrela toona, of the mahogany family, yielding an aromatic red wood used for furniture, carving, etc.
torc: noun, torque (def 4).
Tori: noun, plural of torus.
fam.
ctr.
torn: noun, a drop of the saline, watery fluid continually secreted by the lacrimal glands between the surface of the eye and the eyelid, serving to moisten and lubricate these parts and keep them clear of foreign particles. Synonyms: teardrop.
toro: noun, a bull.
Cara: noun, a female given name: from an Italian word meaning “dear one.”.
cark: noun, care or worry.
CART: noun, a heavy two-wheeled vehicle, commonly without springs, drawn by mules, oxen, or the like, used for the conveyance of heavy goods.
corm: noun, an enlarged, fleshy, bulblike base of a stem, as in the crocus.
crib: noun, a child's bed with enclosed sides.
cat.
crat
Cato: noun, Marcus Porcius [pawr-shee-uh s,, -shuh s] /ˈpɔr ʃi əs,, -ʃəs/ (Show IPA), ("the Elder"or"the Censor") 234–149 b.c, Roman statesman, soldier, and writer.
AFAM
tram: noun, British. a streetcar.
CRAM: noun, Informal. the act of cramming for an examination.
Crab: noun, any decapod crustacean of the suborder Brachyura, having the eyes on short stalks and a short, broad, more or less flattened body, the abdomen being small and folded under the thorax.
tri-
Cort
ciao: interjection, (used as a word of greeting or parting): hello; goodbye; so long; see you later.
CORN: noun, Also called Indian corn; especially technical and British, maize. a tall cereal plant, Zea mays, cultivated in many varieties, having a jointed, solid stem and bearing the grain, seeds, or kernels on large ears.
tank: noun, a large receptacle, container, or structure for holding a liquid or gas:
Amri: noun, Omri.
Tana: noun, thana.
Bork: verb (used with object), to attack (a candidate or public figure) systematically, especially in the media.
kana: noun, a Japanese syllabic script consisting of 71 symbols and having two written varieties.
taco: noun, Mexican Cookery. an often crisply fried tortilla folded over and filled, as with seasoned chopped meat, lettuce, tomatoes, and cheese.
Kano: noun, a city in N Nigeria.
Kant: noun, Immanuel [ih-man-yoo-uh l;; German ih-mah-noo-el] /ɪˈmæn yu əl;; German ɪˈmɑ nuˌɛl/ (Show IPA), 1724–1804, German philosopher.
Iona: noun, an island in the Hebrides, off the W coast of Scotland: center of early Celtic Christianity.
Acta: plural noun, official records, as of acts, deeds, proceedings, transactions, or the like.
boom: noun, a deep, prolonged, resonant sound.
Book: noun, a handwritten or printed work of fiction or nonfiction, usually on sheets of paper fastened or bound together within covers.
kaon: noun, a meson with strangeness +1 and either positive or zero electric charge, or its antiparticle, with strangeness −1 and either negative or zero electric charge. Symbol: K.
Born: noun, Max, 1882–1970, German physicist: Nobel Prize 1954.
IOTA: noun, a very small quantity; jot; whit.
into: adjective, Mathematics. pertaining to a function or map from one set to another set, the range of which is a proper subset of the second set, as the function f, from the set of all integers into the set of all perfect squares where f (x) = x 2 for every integer.
room: noun, a portion of space within a building or other structure, separated by walls or partitions from other parts:
inro: noun, a small lacquer box with compartments for medicines, cosmetics, etc., worn on the waist sash of the traditional Japanese costume.
Taif: noun, a city in W Saudi Arabia.
bort: noun, low-quality diamond, in granular aggregate or small fragments, valuable only in crushed or powdered form, especially for industrial use as an abrasive.
bot.
bonk: verb (used with or without object), to hit, strike, collide, etc.:
Bona: noun, Bône, the former name of Annaba.
info: noun, information.
tack: noun, a short, sharp-pointed nail, usually with a flat, broad head.
'roo: noun, kangaroo.
Inf.
Kain: noun, cain.
Root: noun, a part of the body of a plant that develops, typically, from the radicle and grows downward into the soil, anchoring the plant and absorbing nutriment and moisture.
Bora: noun, (on the Adriatic coasts) a violent, dry, cold wind blowing from the north or northeast.
rook: noun, a black, European crow, Corvus frugilegus, noted for its gregarious habits.
Rota: noun, Chiefly British. a round or rotation of duties; a period of work or duty taken in rotation with others. an agenda or circuit of sporting events, as a round of golf tournaments, played in different localities throughout the year.
ROTC: noun, a body of students at some colleges and universities who are given training toward becoming officers in the armed forces. Abbreviation: ROTC, R.O.T.C.
Roti: noun, roast.
roto: noun, rotogravure.
bor.
Boot: noun, a covering of leather, rubber, or the like, for the foot and all or part of the leg.
roof: noun, the external upper covering of a house or other building.
Irak: noun, Iraq.
Kama: noun, Hindu Mythology. the god of erotic desire, sometimes seen as an aspect of the god whose other aspect is Mara, or death.
tab.
iron: noun, Chemistry. a ductile, malleable, silver-white metallic element, scarcely known in a pure condition, but much used in its crude or impure carbon-containing forms for making tools, implements, machinery, etc. Symbol: Fe; atomic weight: 55.847; atomic number: 26; specific gravity: 7.86 at 20°C. Compare cast iron, pig iron, steel, wrought iron.
tabi: noun, a covering for the foot, similar to a sock, having a separate pouchlike stall for the large toe, worn especially in Japan, often with zoris.
Irma: noun, a female given name, form of Erma.
Boor: noun, a churlish, rude, or unmannerly person.
Afar: noun, a member of a nomadic Muslim people living in Eritrea, Djibouti, and northern Ethiopia.
boon: noun, something to be thankful for; blessing; benefit.
IRBM
bota: noun, Also called bota bag. a wine bag of Spain made of untanned goatskin and usually holding 1–2 liters (1.1–2.2 quarts).
int.
RONA
IMCO
afr-
Roma: noun, Rome.
Boar: noun, the uncastrated male swine.
ICAO
acr-
Bram: noun, a male given name.
boat: noun, a vessel for transport by water, constructed to provide buoyancy by excluding water and shaped to give stability and permit propulsion.
ikat: noun, a method of printing woven fabric by tie-dyeing the warp yarns (warp ikat) the weft yarns (weft ikat) or both (double ikat) before weaving.
iamb: noun, a foot of two syllables, a short followed by a long in quantitative meter, or an unstressed followed by a stressed in accentual meter, as in Come live / with me / and be / my love.
Rock: noun, a large mass of stone forming a hill, cliff, promontory, or the like.
Rom.
ikon: noun, icon (defs 1, 2).
Taka: noun, a paper money, cupronickel coin, and monetary unit of Bangladesh, equal to 100 poisha.
Bran: noun, the partly ground husk of wheat or other grain, separated from flour meal by sifting.
Roca: noun, Cape, a cape in W Portugal, near Lisbon: the western extremity of continental Europe.
karo: noun, a shrub or small tree, Pittosporum crassifolium, of New Zealand, having shiny leaves with a white, felty underside, red flowers, and densely hairy fruit.
iana
Boma: noun, a city in the W Democratic Republic of the Congo, on the Zaire (Congo) River.
IATA
ICBM
Iban: noun, Also called Sea Dayak. a member of any of several Dayak tribes of Sarawak.
tain: noun, a thin tin plate.
Inca: noun, a member of any of the dominant groups of South American Indian peoples who established an empire in Peru prior to the Spanish conquest.
Inc.
kart: noun, a small, light, low-slung, four-wheeled vehicle, usually powered by a gasoline engine, capable of speeds up to 60 miles per hour (96 km/h), and used for racing or recreation.

3 letter words you can make with back-formation

RIF: noun, Er [er] /ɛr/ (Show IPA) a mountainous coastal region in N Morocco.
ONR
ONF
ONI
AMC
ROB: noun, a male given name, form of Robert.
ROK: noun, a soldier in the army of the Republic of Korea.
AIC
AMI: noun, a friend, especially a male friend.
RIM: noun, the outer edge, border, margin, or brink of something, especially of a circular object.
rib: noun, one of a series of curved bones that are articulated with the vertebrae and occur in pairs, 12 in humans, on each side of the vertebrate body, certain pairs being connected with the sternum and forming the thoracic wall.
ROI
oo-
AFT: adverb, at, close to, or toward the stern or tail:
AIM: noun, the act of aiming or directing anything at or toward a particular point or target.
tra
Af.
oic
ONA: noun, a member of a people of Tierra del Fuego.
Oka: noun, Also called old oka. a former measure of weight in Turkey and neighboring countries, equal to about 2.75 pounds (1.25 kilograms). Also called new oka. a modern measure of weight in Turkey and neighboring countries, standarized as equal to the kilogram.
RMC
RNA
AFC
ROA
oma: plural, a noun suffix used to form names of tumors, of the kind specified by the base:
Om.
AFM
Am.
Tro
rin: noun, a money of account of Japan, the thousandth part of a yen or the tenth part of a sen.
OMB
of-
OIt
ab-
OIr
oik: noun, oaf; lout.
rm.: plural, ream.
oft: adverb, often.
trf
ABA: noun, a coarse, felted fabric woven of camel's or goat's hair.
OFr
ac-
tr.
ORT: noun, Usually, orts. a scrap or morsel of food left at a meal.
o-o: noun, any of several species of Hawaiian honey eaters of the genus Moho, especially the extinct M. nobilis, of the island of Hawaii, that had black plumage and two tufts of yellow plumes used to make ceremonial robes for the Hawaiian kings.
TIA
TAM: noun, tam-o'-shanter.
TCA
RAF
ROC: noun, a bird of enormous size and strength.
ACT: noun, anything done, being done, or to be done; deed; performance:
RCN
abn
Tbi
TIC: noun, Pathology. a sudden, spasmodic, painless, involuntary muscular contraction, as of the face. tic douloureux.
RCT
ABM
Tim: noun, a male given name, form of Timothy.
ABC: noun, ABC's (defs 1, 3).
Rab: noun, a wooden beater for mixing plaster or mortar.
TBO
Abo: noun, a contemptuous term used to refer to an Australian Aborigine.
Tai: noun, any of several sparoid fishes of the Pacific Ocean, as Pagrus major (red tai) a food fish of Japan.
abt
rat: noun, any of several long-tailed rodents of the family Muridae, of the genus Rattus and related genera, distinguished from the mouse by being larger.
TAO: noun, (in philosophical Taoism) that in virtue of which all things happen or exist.
TAR: noun, any of various dark-colored viscid products obtained by the destructive distillation of certain organic substances, as coal or wood.
ait: noun, a small island, especially in a river.
RAN: noun, a sea goddess who drags down ships and drowns sailors: the wife of Aegir.
AKA
AIR: noun, a mixture of nitrogen, oxygen, and minute amounts of other gases that surrounds the earth and forms its atmosphere.
TBA
Ain: noun, a department in E France. 2249 sq. mi. (5825 sq. km). Capital: Bourg.
AKC
RBC
ACK
Rai: noun, a style of Algerian popular music played on electric guitar, synthesizer, and percussion instruments.
RBI
RCA
tin: noun, Chemistry. a low-melting, malleable, ductile metallic element nearly approaching silver in color and luster: used in plating and in making alloys, tinfoil, and soft solders. Symbol: Sn; atomic weight: 118.69; atomic number: 50; specific gravity: 7.31 at 20°C.
TKO
AFB
Tor: noun, a rocky pinnacle; a peak of a bare or rocky mountain or hill.
Ria: noun, a long, narrow inlet of a river that gradually decreases in depth from mouth to head.
RTF
too: Idioms, only too. only (def 10).
orc: noun, any of several cetaceans, as a grampus.
rt.
ORB: noun, a sphere or globe:
Ora: noun, plural of os2 .
RFI
an.
OOT
AMA: noun, a Japanese diver, usually a woman, who tends underwater oyster beds used in the cultivation of pearls.
ROT: noun, the process of rotting.
AIA
oon
Tan: noun, the brown color imparted to the skin by exposure to the sun or open air.
ot-
TMO
AAF
TNB
Tom: noun, the male of various animals, as the turkey.
RMA
Aar
AAM
RFA
ton: noun, a unit of weight, equivalent to 2000 pounds (0.907 metric ton) avoirdupois (short ton) in the U.S. and 2240 pounds (1.016 metric tons) avoirdupois (long ton) in Great Britain.
RFC
AFA
RAM: noun, a male sheep.
Amb
Ar.
rfb
OTB
OTA
tfr
ATB
OCR
ina: noun, a female given name.
ITA
IRO
irk: verb (used with object), to irritate, annoy, or exasperate:
IRC
Ir.
IOT
ior
ion: noun, an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons, as a cation (positive ion) which is created by electron loss and is attracted to the cathode in electrolysis, or as an anion (negative ion) which is created by an electron gain and is attracted to the anode. The valence of an ion is equal to the number of electrons lost or gained and is indicated by a plus sign for cations and a minus sign for anions, thus: Na + , Cl−, Ca ++ , S = .
IOF
IOC
ink: noun, a fluid or viscous substance used for writing or printing.
Bra: noun, brassiere.
in.
ITO: noun, Prince Hirobumi [hee-raw-boo-mee] /ˈhi rɔˈbu mi/ (Show IPA), 1841–1909, Japanese statesman.
IMF
IFC
ick: interjection, (used as an expression of distaste or repugnance.)
ICA: noun, Portuguese name of Putumayo.
Ibo: noun, a member of an indigenous black people of southeastern Nigeria, renowned as traders and for their art.
IBN
ib.
ian: noun, a male given name, Scottish form of John.
Ia.
io-
IRA: noun, a male given name: from a Hebrew word meaning “watchful.”.
FTC
ft.
ITC
KCB
FRC
BMT
Koo: noun, (Vi Kyuin) Wellington [wee gyin] /ˈwi ˈgyɪn/ (Show IPA), (Ku Wei-chün; Gu Weijun) 1887–1985, Chinese diplomat and statesman.
bkt
BMI
koi: noun, any of various colorful cultivated forms of the common carp, Cyprinus carpio, apparently originating in Japan and other parts of eastern temperate Asia.
kob: noun, an African antelope, Kobus kob, related to the puku and the lechwe.
Koa: noun, a Hawaiian acacia, Acacia koa, of the legume family, characterized by spreading branches and gray bark.
kn.
kMc
km.
Kit: noun, a set or collection of tools, supplies, instructional matter, etc., for a specific purpose:
kir: noun, an apéritif of white wine or sometimes champagne (Kir Royale) flavored with cassis.
BMR
ock
Kim: noun, a male or female given name.
Kt.
KIF: noun, kef.
Bn.
KIA
kCi
boa: noun, any of several nonvenomous, chiefly tropical constrictors of the family Boidae, having vestigial hind limbs at the base of the tail.
Bok: noun, Edward William, 1863–1930, U.S. editor and writer, born in the Netherlands.
Bon: noun, Cape, a cape on the NE coast of Tunisia: surrender of the German African forces, May 12, 1943.
boo: noun, an exclamation of contempt or disapproval:
Kan
Kam: noun, a Kam-Tai language spoken in southern China.
Kaf: noun, the twenty-second letter of the Arabic alphabet, representing a velar stop consonant sound.
kab: noun, cab2 .
ka-
fro: Idioms, to and fro, alternating from one place to another; back and forth:
FRB
bk.
CFA
FAO
Fan: noun, any device for producing a current of air by the movement of a broad surface or a number of such surfaces.
CAM: noun, Machinery. a disk or cylinder having an irregular form such that its motion, usually rotary, gives to a part or parts in contact with it a specific rocking or reciprocating motion.
CAR: noun, an automobile.
FAB: adjective, fabulous (def 2).
FAA
FOB: noun, a small pocket just below the waistline in trousers for a watch, keys, change, etc. Compare watch pocket.
fo.
FBA
ctn: plural, carton.
ctf
CTA
CRT
CFI
CAI
cfm
CFO
COT: noun, a light portable bed, especially one of canvas on a folding frame.
CFR
CIA
CIB
CIF
CIM
CMA
COO: noun, a cooing sound.
CNM
CNO
COB: noun, a corncob.
FAR: Idioms, a far cry (from). cry (def 27).
FAT: noun, any of several white or yellowish greasy substances, forming the chief part of adipose tissue of animals and also occurring in plants, that when pure are colorless, odorless, and tasteless and are either solid or liquid esters of glycerol with fatty acids; fats are insoluble in water or cold alcohol but soluble in ether, chloroform, or benzene: used in the manufacture of soap, paints, and other protective coatings and in cooking.
BRM
FIT: noun, the manner in which a thing fits:
Bro: noun, a brother.
Fra: noun, a title of address for a friar or brother.
Fr.: abbreviation, Father.
FOT
BRT
Bt.
ca.
CAF
FON: noun, a member of a people living mainly in Benin.
FMk
FMC
FMB
fm.
cf.
CAB: noun, a taxicab.
FIR: noun, any coniferous tree belonging to the genus Abies, of the pine family, characterized by its pyramidal style of growth, flat needles, and erect cones.
CIO: noun, a federation of affiliated industrial labor unions, founded 1935 within the American Federation of Labor but independent of it 1938–55. Abbreviation: C.I.O., CIO.
FIO
Co.
fic
cr.
ct.
CAA
FIB: noun, a small or trivial lie; minor falsehood.
Fia
FCA
FBO
FBI
kor: noun, homer2 .
kin: noun, a person's relatives collectively; kinfolk.
BIT: noun, Machinery. a removable drilling or boring tool for use in a brace, drill press, or the like. a removable boring head used on certain kinds of drills, as a rock drill. a device for drilling oil wells or the like, consisting of a horizontally rotating blade or an assembly of rotating toothed wheels.
MRA
AOA
NAM: noun, Vietnam.
aor
NAB: verb (used with object), to arrest or capture.
NAA
NCO
MTO
mtn
MTI
MTF
Mt.
MRI
Mr.: plural, mister: a title of respect prefixed to a man's name or position:
NBA
ARA: noun, the Altar, a southern constellation between Triangulum Australe and Scorpius.
arb: noun, an arbitrager.
kr.
ARC: noun, Geometry. any unbroken part of the circumference of a circle or other curved line.
ARF: interjection, (used to imitate the bark of a dog).
MOR
moo: noun, a mooing sound.
MOI
MOC: noun, moccasin.
mob: noun, a disorderly or riotous crowd of people.
MOA: noun, any of several flightless birds of the family Dinornithidae, of New Zealand, related to the kiwis but resembling the ostrich: extinct since about the end of the 18th century.
MNA
Nat: noun, a male given name, form of Nathan or Nathaniel.
NBC
MIT
NRC
Oca: noun, a wood sorrel, Oxalis tuberosa, of the Andes, cultivated in South America for its edible tubers.
obi: noun, a long, broad sash tied about the waist over a Japanese kimono.
Oba: noun, a hereditary tribal ruler among various peoples in the Benin region of western Africa.
OAT: noun, a cereal grass, Avena sativa, cultivated for its edible seed.
oar: noun, a long shaft with a broad blade at one end, used as a lever for rowing or otherwise propelling or steering a boat.
OAO
OAK: noun, any tree or shrub belonging to the genus Quercus, of the beech family, bearing the acorn as fruit.
oaf: noun, a clumsy, stupid person; lout.
OTC
OFM
Oc.
ob.
NRA
NFC
nr.
ANC
ANF
ANI: noun, any of several black, tropical American cuckoos of the genus Crotophaga, having a compressed, bladelike bill.
NOC
nob: noun, Slang. the head.
NMR
nit: noun, the egg of a parasitic insect, especially of a louse, often attached to a hair or a fiber of clothing.
NIM: noun, a game in which two players alternate in drawing counters, pennies, or the like, from a set of 12 arranged in three rows of 3, 4, and 5 counters, respectively, the object being to draw the last counter, or, sometimes, to avoid drawing it.
nik
NIC: noun, a newly industrialized/industrializing country:
nib: noun, the point of a pen, or either of its divisions.
NIA
mk.
MOT: noun, a pithy or witty remark; bon mot.
MIR: noun, a village commune of peasant farmers in prerevolutionary Russia.
Bat: noun, Sports. the wooden club used in certain games, as baseball and cricket, to strike the ball. a racket, especially one used in badminton or table tennis. a whip used by a jockey. the act of using a club or racket in a game. the right or turn to use a club or racket.
Mat: noun, a piece of fabric made of plaited or woven rushes, straw, hemp, or similar fiber, or of some other pliant material, as rubber, used as a protective covering on a floor or other surface, to wipe the shoes on, etc.
at.
Br.
Bac
Bai: noun, a yellow mist occurring in eastern China and Japan during the spring and fall, caused by dust from the interior of China.
BAM: noun, a loud thud, as that produced when two objects strike against each other with force.
Ban: noun, the act of prohibiting by law; interdiction.
BAO: noun, an African board game usually played by moving pebbles along two rows of holes.
Mao
BFA
Mcf
BFT
bi-
Bia: noun, the ancient Greek personification of force: daughter of Pallas and Styx and sister of Cratus, Nike, and Zelos.
Mab: noun, Queen Mab.
MAA
M-1: noun, a semiautomatic, gas-operated, .30 caliber, clip-fed rifle, with a weight of 8.56 pounds (3.88 kg): the standard U.S. Army rifle in World War II and in the Korean War.
Mo.
MIA: plural, missing in action.
Mc-
Kra: noun, Isthmus of, the narrowest part of the Malay Peninsula, between the Bay of Bengal and the Gulf of Siam. 35 miles (56 km) wide.
MBO
BAA: noun, the bleating cry of a sheep.
NMI
MI6: noun, the government's secret intelligence service.
MCR
MFA
ATA
mi.
MCI
MFR
MFT
ATC
MI5: noun, the government's security and counterespionage service that works in liaison with Scotland Yard's Special Branch.
MIB: noun, a playing marble, especially one that is not used as a shooter.

2 letter words you can make with back-formation

i.
f.: noun, (Paul) Felix (Edler von Münzberg) [poul fey-liks eyd-luh r fuh n mynts-berk] /paʊl ˈfeɪ lɪks ˈeɪd lər fən ˈmüntsˌbɛrk/ (Show IPA), 1863–1942, Austrian composer, conductor, and writer.
RF
FI: noun, the solmization syllable used for the semitone between the fourth and fifth degrees of a scale.
FC
RI
FA: noun, the syllable used for the fourth tone of a diatonic scale.
No: noun, an utterance of the word “no.”.
KI: noun, the Sumerian goddess personifying earth: the counterpart of the Akkadian Aruru.
ic
OK: noun, an approval, agreement, or endorsement:
RN
AI: noun, a three-toed sloth, Bradypus tridactylus, inhabiting forests of southern Venezuela, the Guianas, and northern Brazil, having a diet apparently restricted to the leaves of the trumpet-tree, and sounding a high-pitched cry when disturbed.
O.
RC
OA
RO
MN
A.: noun, Agnolo (di Cosimo di Mariano) [ah-nyaw-law dee kaw-zee-maw dee mah-ryah-naw] /ˈɑ nyɔ lɔ di ˈkɔ zi mɔ di mɑˈryɑ nɔ/ (Show IPA), 1502–72, Italian painter.
ck
MB
MA: noun, mother1 .
M.
IF: noun, a supposition; uncertain possibility:
NM
T1
AO
K.
NF
B-
NC
NB
NA: adverb, no1 .
N.
IT: noun, (in children's games) the player called upon to perform some task, as, in tag, the one who must catch the other players.
NI
fn
TI: noun, the syllable for the seventh tone of a diatonic scale.
CB
TA: noun, the 16th letter of the Arabic alphabet.
t.
TC
CM
KO: noun, a knockout in boxing.
TB
BM
KC
KB
MF
RA: noun, the 10th letter of the Arabic alphabet.
FB
BO
BF
tk
AK
BC
TN
R.
K2: noun, Also called Godwin Austen [god-win aw-stin] /ˈgɒd wɪn ˈɔ stɪn/ (Show IPA), Dapsang [duh p-suhng] /dəpˈsʌŋ/ (Show IPA). a mountain in N Kashmir, in the Karakoram range: second highest peak in the world. 28,250 feet (8611 meters).
TM
BA: noun, an aspect of the soul, represented as a human-headed bird.
AA: noun, basaltic lava having a rough surface.

Word Value for back-formation

Scrable

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