Trigraph

Look up trigraph in Wiktionary, the free dictionary.

Trigraph may refer to:

Computing

Digraphs and trigraphs, groups 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 we have a set of edges called semi-adjacent

Other uses

Trigraph (orthography), a sound representation in orthography

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