Definition of boom
- business was booming
- California boomed when gold was discovered there
- the population boomed
- his voice booms out the lyrics
- boom a punt
the sound of the bass drum booming
His voice boomed out across the congregation.
She boomed commands from the stern of the ship.
“What's going on here?” he boomed.
Housing construction has boomed in the past year.
Last year we almost had to close the store, but now business is booming.
First Known Use: 15th centurySee Words from the same year
What made you want to look up boom? Please tell us where you read or heard it (including the quote, if possible).
to lessen the seriousness or strength of
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