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verb [transitive] boost pronunciation in British English /buːst/ 
Word Forms
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present tense
I/you/we/theyboost
he/she/itboosts
present participleboosting
past tenseboosted
past participleboosted
  1. 1
    to help something to increase, improve, or become more successful

    Their share price climbed again today, boosted by rising sales.

    a drug that boosts serotonin levels in the body

    an attempt to boost the minister's popularity

  2. 2
    to make someone feel more positive or more confident
    boost morale/confidence:

    The change of management has boosted morale throughout the company.

  3. 4

    boost

    or

    boost up

    to lift someone up, so that they can reach something that is high up
    Synonyms and related words for this sense of boost

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