callback

1. an act of calling back.

2. a summoning of workers back to work after a layoff.

3. a summoning of an employee back to work after working hours, as for emergency business.

4. a request to a performer who has auditioned for a role, booking, or the like to return for another audition.

5. recall.

6. a return telephone call.

7. an allusion to a joke made earlier in the same comedy act or show.

   The kitten yelling “Quiet!” at the end was a callback to earlier in the episode when the two normally silent brothers shouted it.

1. of or relating to a return telephone call.

   Please leave a callback number.

1. to telephone (a person) who has called earlier.

   Our staff will call you back within 24 hours.

2. to summon or bring back; recall.

   He called back the messenger.

   The actor was called back for a second audition.

3. to revoke; retract.

   to call back an accusation.