1. Having ones attention or mind or energy engaged Adjective Satellite
2. Involved in military hostilities Adjective Satellite
3. Reserved in advance Adjective Satellite
4. (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) Adjective Satellite
5. (used of toothed parts or gears) interlocked and interacting Adjective Satellite
6. Having services contracted for Adjective Satellite
7. Built against or attached to a wall Adjective Satellite