boom noun Meaning in the Cambridge Learner’s Dictionary
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Meaning of “boom” - Learner’s Dictionary

boom

noun [C]
 
 
/buːm/
INCREASE a period when there is a big increase in sales or profits: an economic boom The 1990's saw a boom in computer sales.Economics and the state of the economyBecoming betterMaking things betterMaking progress and advancing
SOUND a loud, deep sound →  See also baby boom Sounds made by objects, movement or impact
(Definition of boom noun from the Cambridge Learner’s Dictionary © Cambridge University Press)
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