trigraph

noun tri·graph \ ˈtrī-ˌgraf \

Definition of trigraph

1 : three letters spelling a single consonant, vowel, or diphthong
  • eau of beau is a trigraph
2 : a cluster of three successive letters
  • the, ion, and ing are high frequency trigraphs

trigraphic

play \(ˌ)trī-ˈgra-fik\ adjective

First Known Use of trigraph

circa 1836

in the meaning defined at sense 1

See Words from the same year
NEW! Time Traveler

Seen and Heard

What made you want to look up trigraph? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!