Definitions
There are 2 meanings of the phrase
In Use.
In Use - as an adjective satellite
(of facilities such as telephones or lavatories) unavailable for use by anyone else or indicating unavailability; (`engaged' is a british term for a busy telephone line)
Example: "Her line is busy"
Synonyms (Exact Relations)
busy9engaged10Currently being used
Example: "Robots are in use throughout industry"
Example Sentences
"The computer is currently in use."
"All the available parking spots are in use."
"The phone line is in use, please try again later."
"The meeting room is currently in use."
"The swimming pool is in use for swimming lessons."
