ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun
Usage: often attributive
1. : one that is above average in weight: as
a. : a participant (as a boxer or wrestler) in a sport or athletic contest who belongs to the heaviest of the classes into which contestants are divided ; especially : a boxer weighing not less than 175 pounds — compare featherweight
b. : an exceptionally massive or heavy object (as a truck or naval vessel)
2. : one that carries unusual weight (as an outstanding writer or philosopher or a political leader)
the heavyweights of the party gathered in New York