Pronunciation: (ek'stru),[key] —adj. 1. beyond or more than what is usual, expected, or necessary; additional: an extra copy of a newspaper; an extra charge. 2. larger or better than what is usual: an extra binding.
—n. 1. something extra or additional: the little amenities and extras that make life pleasant. 2. an additional expense.
3. a special edition of a newspaper, other than a regular edition.
4. something of superior quality.
5. Motion Pictures,Television.a person hired by the day to play a minor part, as a member of a mob or crowd.
6. an additional worker.
7. Usually, extras.Cricket.a score or run not made from the bat, as a bye or a wide.
—adv. 1. in excess of the usual or specified amount: an extra high price. 2. beyond the ordinary degree; unusually; uncommonly: done extra well; extra large.
a prefix meaning “outside,” “beyond,” freely used as an English formative: extrajudicial; extraterritorial; extra-atmospheric.Also,extro-.