adj.
- More than or beyond what is usual, normal, expected, or necessary. See synonyms at superfluous.
- Better than ordinary; superior: extra fineness.
- Subject to an additional charge: Coffee does not come with dinner but is extra.
- Something more than is usual or necessary.
- Something, such as an accessory on a motor vehicle, for which an additional charge is made.
- A special edition of a newspaper.
- An additional or alternate worker.
- A performer hired to play a minor part, as in a crowd scene in a film.
- Something of exceptional quality.
To an exceptional extent or degree; unusually: extra dry.
[Probably short for EXTRAORDINARY.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.