heavyweight - definition, thesaurus and related words from WordNet-Online

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Adjective heavyweight has 1 sense

heavyweight - heaviest in a category or of a heavyweight category (more than 190 pounds for prizefighters); "a heavyweight boxer"
Antonym: light (indirect, via heavy)

Noun heavyweight has 5 senses

heavyweight - an amateur boxer who weighs no more than 201 pounds
--₁ is a kind of boxer, pugilist
heavyweight - a wrestler who weighs more than 214 pounds
--₂ is a kind of wrestler, grappler, matman
heavyweight - a professional boxer who weighs more than 190 pounds
--₃ is a kind of prizefighter, gladiator
giant, hulk, heavyweight, whale - a very large person; impressive in size or qualities
--₄ is a kind of large person
colossus, behemoth, giant, heavyweight, titan - a person of exceptional importance and reputation
--₅ is a kind of important person, influential person, personage