plural middleweights
sports
: a fighter who is in a class of boxers with an upper weight limit of 160 pounds (72 kilograms) : a boxer who is heavier than a lightweight and lighter than a heavyweight
—often used before another noun
a middleweight boxer/champion
fighting for the middleweight title/crown
Cite this Entry
“Middleweight.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/middleweight. Accessed 15 Apr. 2026.
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