Tercets is a 7 letter English word. It's valid Scrabble word worth 8 points. It's valid Words with friends word worth 9 points.
You can make 125 anagrams from letters in tercets (ceerstt).
1590-1600; French Italian terzetto, diminutive of terzo third Latin tertius. See -et
The common form of the sestina has six stanzas of six lines each, with a tercet at the end.
When there are two verses the stanza is called a couplet; a three line stanza is called a tercet; a four line stanza, a quatrain.