Nouns

(n)heavyweightan amateur boxer who weighs no more than 201 pounds
(n)heavyweighta wrestler who weighs more than 214 pounds
(n)heavyweighta professional boxer who weighs more than 190 pounds
(n)giant, hulk, heavyweight, whalea very large person; impressive in size or qualities
(n)colossus, behemoth, giant, heavyweight, titana person of exceptional importance and reputation
(n)heavyweight, super heavyweightA weight class division in combat sports, often the heaviest.