fifth part fifthly • fifth wheel · · · Info · Definitions · Synonyms · Characters · · fifth part · · Text Common · · Latin · · Scripts 10 · · Length 2 · · Syllables Definitions · · · (noun) one part in five equal parts. Synonyms: one-fifth, fifth, fifth part, twenty percent. · · Noun Definition 1 Synonyms · · · one-fifth · · Synonym 1 fifth · · Synonym 2 twenty percent · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 f latin small letter f U+0066 h latin small letter h U+0068 i latin small letter i U+0069 p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074