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

And for companies with heavy-duty computing needs, Oracle's new route might be more attractive than building whole data centers. — Jordan Novet, CNBC, 10 Oct. 2026

The heavy-duty double-wall carton and dense foam inserts held the power station securely in place. — Michael Lydick, PC Magazine, 9 Oct. 2026

Harbinger described the order as one of the largest binding orders for electric medium- or heavy-duty trucks to date. — Glenn Taylor, Footwear News, 6 Oct. 2026

Behind every stealth sortie sits a web of ground support, architectural software, and heavy-duty maintenance hangars keeping the nation’s most expensive weapons system ready for flight. — Mrigakshi Dixit, Interesting Engineering, 5 Oct. 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