Trigraph
|
|
A trigraph (from the Greek words tria = three and grapho = write) is a group of three symbols, most commonly letters.
Trigraphs are used in several fields, and for several purposes. Among them are:
- In computing:
- As character representations in the C-family of programming languages.
- As octal or decimal representation of byte values.
- As trigrams in text matching.
- In language:
- As language codes in ISO 639.
- As sound representations in orthography.
- As abbreviations.
- In cryptography:
- As substitution group in a substitution cipher.
- As combinations in the Ling Qi Jing.
Trigraph is also the name of several businesses.