Simple Definition of heavyweight
: a fighter in the heaviest class of boxers : a boxer who weighs more than 175 pounds (79.5 kilograms)
: someone or something that is very important and powerful
: something that is heavy
Full Definition of heavyweight
Examples of heavyweight in a sentence
Their company is one of the industry's heavyweights.
<a heavyweight in the U.S. Senate, he has a lot of clout in judicial confirmations>
First Known Use of heavyweight
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