labor union

Definitions

General English

Construction

  • An organization or confederation of workers with the same or similar skills who are joined in a common cause (such as collective bargaining) with management or other employers for work place conditions, wage rates, and/or employee benefits.

Politics

  • noun an organisation which represents workers who are its members in discussions about pay and conditions of work with management
http://www.dictionarycentral.com/definition/labor-union.html