trade union

Organization whose membership consists of workers and union leaders, and whose principal purposes are to (1) negotiate wages and working condition terms, (2) regulate relations between workers (its members) and the employer, (3) take collective action to enforce the terms of collective bargaining, (4) raise new demands on behalf of its members, and (5) help settle their grievances. Trade unions are generally classified as: (a) Company union that represents interests of only one firm and may not have any connection with the trade union movement. Also called house union, a company union is often a bogus one and generally illegal. (b) General union that represents workers from several firms from the same industry. Also called industrial union. (c) Craft union that represents skilled workers in a particular field such as carpentry or welding.