extra

Từ điển American Heritage Dictionary 4th

ex·tra (ĕkʹstrə)adj.
1. More than or beyond what is usual, normal, expected, or necessary. See Synonyms at superfluous.
2. Better than ordinary; superior:
extra fineness.
3. Subject to an additional charge:
Coffee does not come with dinner but is extra.n.
1. Something more than is usual or necessary.
2. Something, such as an accessory on a motor vehicle, for which an additional charge is made.
3. A special edition of a newspaper.
4.
a. An additional or alternate worker.
b. A performer hired to play a minor part, as in a crowd scene in a film.
5. Something of exceptional quality.adv.
To an exceptional extent or degree; unusually:
extra dry. [Probably short for extraordinary.]

• Từ đồng nghĩa / Synonyms:
  additional, special, excess, redundant, spare, supererogatory, superfluous, supernumerary, surplus, duplicate, spear carrier