fica fibulocalcaneal • Ficaria · · · Info · Definitions · Characters · · fica · · Text Latin · · Script 4 · · Length 2 · · Syllables Definitions · · · (noun) a tax on employees and employers that is used to fund the Social Security system. Synonyms: FICA. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 f latin small letter f U+0066 i latin small letter i U+0069