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boom - definition and synonyms

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verb [intransitive]     boom pronunciation in American English
Word Forms
present tense
present participlebooming
past tenseboomed
past participleboomed
  1. 1
    Sound effect to make a deep loud sound that continues for some time
    boom out:

    A voice boomed out from the loudspeakers.

  2. 2
    [usually progressive] economics if a country, region, or industry is booming, it is experiencing a period of economic success, with a lot of trade and business activity
    1. a.
      if an activity is booming, it is becoming very popular

      Interest in archaeology is booming.

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