Definition of closed shop noun from the Oxford Advanced Learner's Dictionary


closed shop

; NAmE
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a factory, business, etc. in which employees must all be members of a particular trade/labor union Wordfinderballot, closed shop, collective bargaining, industrial action, labour, picket, protest, representative, strike, union Culture Closed shops were made illegal in Britain in the 1980s. In the US they were made illegal by the Taft-Hartley Act of 1947, but they became legal again in 1951
See the Oxford Advanced American Dictionary entry: closed shop