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boom - definition and synonyms


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noun boom pronunciation in American English /bum/
Word Forms
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  1. 1
    [countable/uncountable] economics a sudden major increase in trade, profits, etc. in a particular country or region
    the economic boom of the 1980s
    boom years
    1. a.
      [countable] a similar increase in the activity of a particular industry or part of a countrys economy
      an export/investment/house-building boom
      boom in: The island is experiencing a boom in tourism.
    See also baby boom
  2. 2
    [countable] a sudden increase in the popularity of something
    the aerobics boom of the 1980s
    boom in: the recent boom in Internet gambling
  3. 3
    [countable] [usually singular] a deep loud sound that continues for some time, for example the noise of thunder or an explosion
    Synonyms and related words


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