HEAVYWEIGHT

[noun] [C], [adjective] - a boxer who weighs more than 175 pounds (79.5 kilograms) and is therefore in the heaviest group, or (figurative) a person or thing that is important or serious and that other people noticeMike Tyson was heavyweight champion of the world.(figurative) Her extraordinary intelligence and speaking ability made her a political heavyweight. [C](figurative) The committee produced a heavyweight report on the global situation. [C]Compare lightweight.