Close down and Cool it

Close down verb - Cease to operate or cause to cease operating.

Cool it and close down are semantically related in stop topic. In some cases you can use "Cool it" instead a verb "Close down".

Cool it verb - Become quiet or calm, especially after a state of agitation.

Close down and cool it are semantically related in stop topic. Sometimes you can use "Close down" instead a verb "Cool it".