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English definition of “powerhouse”

powerhouse

noun [C]     /ˈpaʊəˌhaʊs/
a country or an organization that has a lot of influence, power, or energy: corporate/economic/financial powerhouses Analysts still believe that China and India will become the economic powerhouses of the world. a marketing/media/publishing powerhouse
a person who has a lot of strength and energy: He was a powerhouse of ideas.
(Definition of powerhouse noun from the Cambridge Business English Dictionary © Cambridge University Press)
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