Respuesta :
A “closed shop” is a factory where all of the workers are union members.
A pre-entry closed shop (or simply closed shop) is a form of union security agreement under which the employer agrees to hire union members only, and employees must remain members of the union at all times in order to remain employed.
The meaning of a "closed shop" is, a place of work where membership in a union is a condition for being hired and for continued employment.
I hope this helps!
- DaMomsMom