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English definition of “boom”

boom

noun [C or U] (PERIOD OF GROWTH)    /buːm/
a period of sudden economic growth , especially one that results in a lot of money being made: This year has seen a boom in book sales . The insurance business suffered from a vicious cycle of boom and bust . the property boomEconomics and the state of the economySuccess and achievementsHigher and lower points of achievementFailures
(Definition of boom noun (PERIOD OF GROWTH) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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