trade union 
(British also trades union)
noun
An organized association of workers in a trade, group of trades, or profession, formed to protect and further their rights and interests.Workers do use it every time they organise a trade union and fight for better wages and conditions....
- It is not an easy decision to become a trade unionist without a trade union.
- There are no political parties, no elections, no independent legislature, no trades unions, no bar association, no independent judiciary, and no independent human rights organisations.
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