be in/out of use
be in use
To be currently occupied or utilized. The shower is in use so you'll have wait for now.
See also: use
be out of use
To be unable to be used at the moment, as of something that needs to be fixed. The elevator is out of use right now, so you'll have to take the stairs.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
be in/out of ˈusebe/not be being used: We’ll have to find a classroom that’s not in use. ♢ The road’s out of use while it’s being repaired.
Farlex Partner Idioms Dictionary © Farlex 2017