American English

Definition of boost noun from the Oxford Advanced American Dictionary



    [usually singular]
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  1. 1something that helps or encourages someone or something a great/tremendous/welcome boost The tax cuts will give a much-needed boost to the economy. Winning the competition was a wonderful boost to the team's morale.
  2. 2an increase in something a boost in car sales
  3. 3an increase in power in an engine or a piece of electrical equipment
  4. 4an act of pushing someone up from behind He gave her a boost over the fence.
See the Oxford Advanced Learner's Dictionary entry: boost

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