overtime

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Time beyond an established limit, as:
2. n. Working hours in addition to those of a regular schedule.
3. n. Sports A period of playing time added after the expiration of the set time limit.
4. n. Payment for additional work done outside of regular working hours.
5. adv. Beyond the established time limit, especially that of the normal working day: The newspaper staff worked overtime.
6. v. To exceed the desired timing for: overtime a photographic exposure.

Century Dictionary and Cyclopedia

1. n. Time during which one works beyond the regular hours.
2. During extra time: as, to work overtime.
3. In photography, to allow too much time in exposure or other treatment.

Wiktionary

1. n. uncountable The working time outside of one's regular hours
2. n. sports, countable An extra period of play when a contest has a tie score at the end of regulation.
3. n. uncountable The rate of pay, usually higher, for work done outside of or in addition to regular hours.
4. adv. Exceeding regular working hours.

GNU Webster's 1913

1. n. Time beyond, or in excess of, a limit; esp., extra working time.
2. n. (Sports) An extra period of time provided to play a game, beyond the end of the normal period allowed for the game, for the purpose of resolving a tie score.

WordNet 3.0

1. n. playing time beyond regulation, to break a tie
2. n. work done in addition to regular working hours
3. adv. beyond the regular time