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

The plug-and-play design can be installed using a heavy-duty forklift and relies on simple air cooling instead of more complex liquid cooling systems. — Neetika Walter, Interesting Engineering, 10 July 2026

Shoring jacks are heavy-duty adjustable props used to temporarily support vertical structures such as ceilings, concrete slabs and walls. — Emma Tucker, CNN Money, 9 July 2026

The Environmental Protection Agency on Thursday proposed rolling back emission standards for new heavy-duty trucks, including buses, garbage trucks and semis. — Bloomberg, Oc Register, 9 July 2026

Fortunately for Ram, the company was still building some Hemis to supply its heavy-duty truck line, so bringing production back online was more a matter of scaling back up than rebuilding the whole thing from scratch. — Byron Hurd, The Drive, 9 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