1. Termination of operations
   "The factory's closedown left hundreds of workers unemployed";
   - closure, closing, shutdown

1. Cease to operate or cause to cease operating
   "close down the shop";
   - close up, close, fold, shut down

Derived forms: closes down, closed down, closedowns, closing down

Type of: break, break off, cease, conclusion, discontinue, ending, give up, lay off, quit, stop, surcease [archaic], termination

Encyclopedia: Closedown