{ or }. 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 ]
(n) an organized attempt by workers to improve their status by united action (particularly via labor unions) or the leaders of this movement, Syn. labor, trade union movement
(n) an organization of employees formed to bargain with the employer, Syn. brotherhood, labor union, trades union, trade union, Example:you have to join the union in order to get a job