(Homonym: idle, idol).
1. Not in active use; SYN. unused.
2. Not in action or at work.
3. Not having a job; SYN. jobless, out of work.
4. Lacking a sense of restraint or responsibility; SYN. loose.
5. Silly or trivial; SYN. light.

(Homonym: idle, idol).
1. To run disconnected or at idle speed.
2. To spent time in idleness; SYN. laze, stagnate.

1. Operational but not in use.
2. Waiting for a command.