Diagraph is a 8 letter English word. It's valid Scrabble word worth 15 points. It's valid Words with friends word worth 16 points.
You can make 199 anagrams from letters in diagraph (aadghipr).
1840-50; French diagraphe Greek diagráphein to draw. See dia-, -graph
In the orthography of the Félibres the diagraph ue is used as we find it in Old French to represent this vowel.