digraph

1. A pair of letters representing a single speech sound, such as the ph in pheasant or the ea in beat.
2. A single character consisting of two letters run together and representing a single sound, such as Old English æ.

The noun has one meaning:

Meaning #1: two successive letters (especially two letters used to represent a single sound: `sh' in `shoe')

Look up digraph in Wiktionary, the free dictionary.

Digraph may refer to:

• Digraph (orthography), a pair of characters used to write one phoneme (distinct sound) or a sequence of phonemes that does not correspond to the normal values of the two characters combined
• Typographical ligature, the joining of two letters as a single glyph (e.g. æ)
• Digraph (computing), a two-character sequence used to enter a single conceptual character
• Digraph (mathematics), a synonym for "directed graph"

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