SynonymDefinitionAntonym.com - English Synonym Dictionary

Built against or attached to a wall

Having services contracted for

(used of toothed parts or gears) interlocked and interacting

Involved in military hostilities

(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)

Reserved in advance

Having ones attention or mind or energy engaged