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English definition of “heavyweight”

heavyweight

noun [C]  /ˈhev·iˌweɪt/ us  

heavyweight noun [C] (BOXING)

in boxing, a competitor who weighs more than 175 pounds, or 79.5 kilograms, and is in the heaviest group

heavyweight noun [C] (IMPORTANT PERSON)

someone who has a lot of power in a particular business or activity: a political heavyweight
(Definition of heavyweight from the Cambridge Academic Content Dictionary © Cambridge University Press)
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