Definition of digraph
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
First Known Use of digraph
Seen and Heard
What made you want to look up digraph? Please tell us where you read or heard it (including the quote, if possible).