/ Dictionary / Index H heavyweight: Meaning and Definition of Find definitions for: heav•y•weight Pronunciation: (hev'ē-wāt"), [key] — adj. heavy in weight. of more than average weight or thickness: a coat of heavyweight material. noting or pertaining to a boxer, wrestler, etc., of the heaviest competitive class, esp. a professional boxer weighing more than 175 lb. (79.4 kg). of or pertaining to the weight class or division of such boxers: a heavyweight bout. (of a riding horse, esp. a hunter) able to carry up to 205 lb. (93 kg). designating a person, company, nation, or other entity that is extremely powerful, influential, or important: a team of heavyweight lawyers. —n. a person of more than average weight. a heavyweight boxer or wrestler. a person, company, nation, or other entity that is powerful and influential: a price hike initiated by the heavyweights in the industry. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: heavyweight (Thesaurus) heavy water Heb Related Content Daily Word Quiz: meritocracy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language