MIDDLEWEIGHT
middleweight
(noun) a professional boxer who weighs between 155 and 160 pounds
middleweight
(noun) a wrestler who weighs 172-192 pounds
middleweight
(noun) an amateur boxer who weighs no more than 165 pounds
Source: WordNet® 3.1
Etymology
Noun
middleweight (countable and uncountable, plural middleweights)
(uncountable) A weight class in professional boxing between light middleweight or welterweight and super middleweight or cruiserweight; a similar division in wrestling and other sports
(countable) A boxer who fights in this division; a similar wrestler etc
(countable, business, by extension) An employee ranking anywhere between junior and senior.
Source: Wiktionary