n.
Pronunciation: ' d ī - ˌ graf
Function: noun
Date: 1780
1 : a group of two successive letters whose phonetic value is a single sound (as ea in bread or ng in sing ) or whose value is not the sum of a value borne by each in other occurrences (as ch in chin where the value is \ t \ + \ sh \ )
2 : a group of two successive letters
3 : LIGATURE 4
– di · graph · ic \ d ī - ' gra-fik \ adjective
– di · graph · i · cal · ly \ -fi-k( ə -)l ē \ adverb