trigram trigonum • trigrammatic · · · Info · Definitions · Characters · · trigram · · Text Latin · · Script 7 · · Length Definitions · · · (noun) a word that is written with three letters in an alphabetic writing system. · · Noun Definition 1 Characters · · a latin small letter a U+0061 g latin small letter g U+0067 i latin small letter i U+0069 m latin small letter m U+006D r latin small letter r U+0072 t latin small letter t U+0074