close down phrasal verb (see also close)

1. close something ↔ down if a company, shop etc closes down or is closed down, it stops operating permanently:
Paramount closed down its London office in 1968.

2. British English to stop broadcasting radio or television programmes at the end of the day:
BBC 2 closes down at 12:45 tonight.

[TahlilGaran] Dictionary of Contemporary English ▲

close down
v. To stop all working, as in a factory; stop work entirely; also: to stop operations in.
The factory closed down for Christmas.
The company shut down the condom plant for Easter.

[TahlilGaran] English Idioms Dictionary ▲