Definition of extra adverb from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈekstrə//
    ; NAmE NAmE//ˈekstrə//
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  1. 1  in addition; more than is usual, expected or exists already to charge/pay/cost extra We don't charge extra for the activities—everything is included in the admission fee. I need to earn a bit extra this month. The rate for a room is £60, but breakfast is extra. Now even bigger! Ten per cent extra!
  2. 2  (with an adjective or adverb) more than usually You need to be extra careful not to make any mistakes. an extra large T-shirt She tried extra hard. Do you have this sweatshirt in an extra large size? He wanted to cook something extra special for dinner that night.
  3. Word Originmid 17th cent. (as an adjective): probably a shortening of extraordinary, suggested by similar forms in French and German.
See the Oxford Advanced American Dictionary entry: extra