— Also termed labor union; labor organization; organization. See TRADE COUNCIL. [Cases: Labor Relations 81. C.J.S. Labor Relations §§ 43–45.] — unionize, vb. — unionist, n.
closed union. A union with restrictive membership requirements, such as high dues and long apprenticeship periods. Cf. closed shop under SHOP.
company union.
1. A union whose membership is limited to the employees of a single company.
2. A union under company domination.
craft union. A union composed of workers in the same trade or craft, such as carpentry or plumbing, regardless of the industry in which they work.
— Also termed horizontal union.
federal labor union. A local union directly chartered by the AFL-CIO.
horizontal union. See craft union.
independent union. A union that is not affiliated with a national or international union.
industrial union. A union composed of workers in the same industry, such as shipbuilding or automobile manufacturing, regardless of their particular trade or craft.
— Also termed vertical union.
international union. A parent union with affiliates in other countries.
local union. A union that serves as the local bargaining unit for a national or international union.
multicraft union. A union composed of workers in different industries.
national union. A parent union with locals in various parts of the United States.
open union. A union with minimal membership requirements. Cf. open shop under SHOP.
trade union. A union composed of workers of the same or of several allied trades; a craft union.
vertical union. See industrial union.