adj.
1.having ones attention or mind or energy engaged
2.involved in military hostilities
3.reserved in advance
4.(of facilities such as telephones or lavatories) unavailable for use by anyone else or indicating unavailability
5.(used of toothed parts or gears) interlocked and interacting
6.having services contracted for
7.built against or attached to a wall
8.pledged to be married
Idiom of the Day
in check
under control, kept quiet
The violence was kept in check by the army.
