boom - definition and synonyms

 
 
noun 

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/buːm/
singularboom
pluralbooms
  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 country’s 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 all kinds of counselling and therapy

  3. 3
    [countable] [usually singular]

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    a deep loud sound that continues for some time, for example the noise of thunder or an explosion
     Synonyms and related words
  4. 4
    [countable] cinema a pole with a camera or microphone attached to it, used in film-making or broadcasting
    1. a.
      a long pole attached to the bottom of a boat’s sail, that is used for changing the direction of the sail
  5. 5
    [countable] a large floating object that is used for blocking a river or stream, for example to stop pollution flowing into it
     Synonyms and related words