English Reference

Word

heavyweight

Phoneticsheavy·weight

US/ˈhɛviˌweɪt/

UK/hˈɛviwˌeɪt/

Definitions

01combat sports

B2 · Upper Intermediate Countable noun Sports

n. a boxer or fighter in the heaviest weight class.

n. a competitor in the heaviest weight division of a combat sport, typically exceeding 200 pounds in professional boxing.

“The heavyweight champion defended his title in a match that lasted twelve rounds.”

“The heavyweight division remains the most commercially lucrative category in professional boxing, often drawing global audiences for title unification bouts.”

Synonyms

02an influential person

C1 · Advanced Countable noun Informal

n. a person who has a lot of power, influence, or importance in a specific area.

n. an individual of great influence, importance, or intellectual ability within a particular field.

“She is a political heavyweight who has served in the government for thirty years.”

“The conference featured several intellectual heavyweights who debated the future of global economic policy for over three hours.”

Synonyms

Antonyms

nobodynonentity

03important or powerful

B2 · Upper Intermediate

adj. having a lot of influence or being very serious and important.

adj. possessing great power, influence, or significance; often used to describe companies, politicians, or serious topics.

“The two heavyweight companies decided to join together to dominate the market.”

“The prime minister faced heavyweight opposition from within his own party regarding the new environmental regulations.”

04physically heavy

B2 · Upper Intermediate

adj. made of thick or heavy material.

adj. constructed from or consisting of material that is relatively heavy or dense.

“You should wear a heavyweight coat if you are going out in the snow.”

“The curtains were made of a heavyweight velvet designed to block out all external light and dampen street noise.”

Synonyms

thickheavy-dutydense

Antonyms

Collocations

Common phrases and expressions where native English speakers use the word “heavyweight” in context.

01. heavyweight boxing 02. heavyweight champion

Real-World Examples

“Panettiere is survived by her daughter Kaya with her ex-partner, Ukrainian former world heavyweight champion boxer, Wladimir Klitschko.”
BBC News 17 Aug 2026
“They were in Las Vegas to see a world heavyweight title boxing match between Mike Tyson and Bruce Seldon.”
Al Jazeera 17 Aug 2026

Etymology

From heavy + weight.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

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English Reference