1. (adjective) having ones attention or mind or energy engaged

• occupied

2. (adjective) reserved in advance

• booked
• set-aside

3. (adjective) (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)

• busy
• in use

4. (adjective) (used of toothed parts or gears) interlocked and interacting

• intermeshed
• meshed

1. (adjective) built against or attached to a wall

• architecture

1. (adjective) having ones attention or mind or energy engaged

• busy

2. (adjective) involved in military hostilities

• involved

3. (adjective) reserved in advance

• reserved

4. (adjective) (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)

• occupied

5. (adjective) (used of toothed parts or gears) interlocked and interacting

• geared

6. (adjective) having services contracted for

• employed

7. (adjective) built against or attached to a wall

• connected

1. (adjective) (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)

• busyness
• hum