trigraph

play
noun tri·graph \ˈtrī-ˌgraf\

Definition of trigraph

  1. 1 :  three letters spelling a single consonant, vowel, or diphthong eau of beau is a trigraph

  2. 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


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