function word function call • functional · · · Info · Definitions · Synonyms · Characters · · function word · · Text Common · · Latin · · Scripts 13 · · Length 3 · · Syllables Definitions · · · (noun) a word that is uninflected and serves a grammatical function but has little identifiable meaning. Synonyms: function word, closed-class word. · · Noun Definition 1 Synonyms · · · closed-class word · · Synonym 1 Characters · · space U+0020 c latin small letter c U+0063 d latin small letter d U+0064 f latin small letter f U+0066 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075 w latin small letter w U+0077