trade-unionism trade-union • trade-unionist · · · Info · Definitions · Synonyms · Characters · · trade-unionism · · Text Common · · Latin · · Scripts 14 · · Length Definitions · · · (noun) the system or principles and theory of labor unions. Synonyms: unionism, trade unionism. · · Noun Definition 1 Synonyms · · · unionism · · Synonym 1 trade unionism · · Synonym 2 Characters · · - hyphen-minus U+002D a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075