heavy-duty

adjective

heavy-du·​ty ˈhe-vē-ˈdü-tē 

-ˈdyü-

1

: able or designed to withstand unusual strain

heavy-duty trucks

2

: intensive

heavy-duty bargaining

3

: important, prominent

heavy-duty lawyers

Synonyms of heavy-duty

• intensive
• intense
• heavy
• fierce
• deep
• ferocious

Examples of heavy-duty in a Sentence

some heavy-duty lobbying on the part of the president was necessary in order to get the bill passed

a group of heavy-duty politicians and other notables attended the gala

Recent Examples on the Web

Wrap each rack tightly in heavy-duty foil with 2 tbsp butter and an additional splash of bulgogi glaze. — Staff, FOXNews.com, 3 July 2026

The ideal tackle for this summer fishing is a heavy-duty casting rig loaded with 100 yards of 15-pound-test monofilament. — Jack G. Mell, Outdoor Life, 2 July 2026

Creatives can check a large item off their wishlist for heavy-duty photo and video editing, plus other pros will enjoy plenty of space for data analysis, coding, and other multitasking projects. — Kelsey Fogarty, PC Magazine, 1 July 2026

The model included light-duty vehicles (passenger cars and trucks), heavy-duty vehicles (delivery trucks, buses, tractor-trailers, etc), and two- and three-wheel vehicles. — Jonathan M. Gitlin, ArsTechnica, 30 June 2026

Word History

First Known Use

1914, in the meaning defined at sense 1

Rhymes for heavy-duty

• agouti
• beauty
• booty
• cutie
• duty
• fruity
• putti
• snooty
• sooty
• sruti
• tutti

Kids Definition

heavy-duty

adjective

heavy-du·​ty

ˌhev-ē-ˈd(y)üt-ē

: able or designed to take hard use or great strain

heavy-duty vehicles