trigraph

{{Wiktionary|trigraph}}

Trigraph may refer to:

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Trigraph (orthography), a combination of written letters used to represent a sound

Computing

Digraphs and trigraphs (programming), a group of characters used to symbolise one character
An octal or decimal representation of byte values
Mnemonics for machine language instructions
As language codes in ISO 639

Cryptography

As substitution group in a substitution cipher
As combinations in the Ling Qi Jing

Mathematics

As a generalization of graphs where there is a set of edges called semi-adjacent

See also

{{Disambiguation}}