Word Study
digraph
OXFORD DICTIONARY
digraph, n. a group of two letters representing one sound, as in ph and ey.
Derivative
digraphic adj.
ROGET THESAURUS
digraph
Letter
N letter, character, hieroglyphic, type, capitals, digraph, trigraph, ideogram, ideograph, majuscule, minuscule, majuscule, minuscule, alphabet, ABC, abecedary, christcross-row, consonant, vowel, diphthong, triphthong, mute, liquid, labial, dental, guttural, syllable, monosyllable, dissyllable, polysyllable, affix, suffix, spelling, orthograph, phonography, phonetic spelling, anagrammatism, metagrammatism, cipher, monogram, anagram, doubleacrostic, literal, alphabetical, abecedarian, syllabic, majuscular, minuscular, uncial.For further exploring for "digraph" in Webster Dictionary Online