boost - definition and synonyms

noun [countable] [usually singular] 

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  1. 1
    an action or event that helps something to increase, improve, or become more successful

    The festival has been a major boost for the local economy.

    1. a.
      an increase in the amount of something
      boost in:

      They are calling for a boost in the minimum wage.

  2. 2
    something that helps you to feel more positive or more confident
    give someone a boost:

    Getting the job gave him a terrific boost.

    boost for:

    Victory tomorrow would be a much-needed boost for the national team.