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

Each corner features heavy-duty stitching and includes a stainless steel D-ring. — Bestreviews, Chicago Tribune, 19 June 2026

In these cases, heavy-duty chemical cleaners can overwhelm a fabric, leaving stains of their own, while gentle dish soap can produce excessive suds without eliminating the substance. — Louise Parks, Martha Stewart, 18 June 2026

The programs help communities track local air pollution by placing more air monitors in the area, develop their own pollution-reduction plans and fund green projects that replace older diesel vehicles and equipment, such as school buses and heavy-duty trucks, with cleaner options. — Chaewon Chung, Sacbee.com, 18 June 2026

Grab some heavy-duty oven/grill mitts to protect your hands from the heat. — Ann Taylor Pittman, Southern Living, 18 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