Meaning of the word "in use" in English

What does "in use" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

in use

US /ɪn juːs/
UK /ɪn juːs/
"in use" picture

Phrase

being used at the present time

Example:
I'm sorry, but this computer is currently in use.
The laboratory is in use for the entire afternoon.