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

Purchases allegedly made by Burke under aliases also included cadaver bags, heavy-duty laundry bags, chain saws, a shovel and a fireproof mat, Byers testified. — Madeline Morrison, NBC news, 22 July 2026

Due to a higher mix of aeroderivative turbines versus heavy-duty gas turbines, the team booked orders at a higher dollar per kilowatt (KW) rate. — Zev Fima, CNBC, 22 July 2026

MacNeil founded WeatherTech, which sells products including heavy-duty floor mats for cars, in 1989. — Catherine Odom, Miami Herald, 22 July 2026

Visually, Hornbill avoids the excess that often defines heavy-duty folders. — New Atlas, 21 July 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