| joined or linked together | built against or attached to a wall |
| plugged in | having services contracted for |
| being joined in close association | (used of toothed parts or gears) interlocked and interacting |
| wired together to an alarm system | involved in military hostilities |
| stored in, controlled by, or in direct communication with a central computer | (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 |
| | pledged to be married |