Found 2 items, similar to trades union.
English → English (WordNet) Definition: trades union trades union n : an organization of employees formed to bargain with the employer; “you have to join the union in order to get a job” [syn: union, labor union, trade union, brotherhood]
English → English (gcide) Definition: trades union trades union \trades" un`ion\, or Trade union \Trade" un`ion\ . An organized combination among workmen for the purpose of maintaining their rights, privileges, and interests with respect to wages, hours of labor, customs, etc. [1913 Webster]