Heavyweight definition

hĕvē-wāt
Frequency:
One of above average weight.
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Of heavyweights.
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(informal) A person of great importance or influence.
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The heaviest weight division in professional boxing, having no upper limit, with contestants usually weighing more than 200 pounds (90.7 kilograms).
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A boxer competing in this weight division.
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A similar weight division in other sports, such as weightlifting.
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A contestant in this weight division.
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A person or animal weighing much more than average.
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An athlete, in any of various sports, who is in the heaviest weight division or classification; specif., a boxer in the heaviest weight classification, typically weighing over 200 pounds (90.7 kg)
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(informal) A very intelligent, influential, or important person.
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Heavy in weight.
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A very large, heavy, or impressive person.

An intellectual heavyweight.

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The professional boxing weight division for boxers weighing more than 190 pounds; a boxer in that division.
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A similar division and contestant in other sports.
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Of the heavyweight boxing (similar) division.
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Being relatively heavy.
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Being a leader in one's field.
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Other Word Forms

Noun

Singular:
heavyweight
Plural:
heavyweights