heavy-duty
Americanadjective
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providing an unusual amount of power, durability, etc..
heavy-duty machinery; heavy-duty shoes.
-
very important, impressive, or serious.
heavy-duty involvement; heavy-duty questions.
noun
-
made to withstand hard wear, bad weather, etc
heavy-duty uniforms
-
subject to high import or export taxes
Etymology
Origin of heavy-duty
First recorded in 1910–15
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Zero-emission vehicles made up around 23% of new medium- and heavy-duty truck sales in the state in 2024, according to a release from Gov. Gavin Newsom’s office.
From Los Angeles Times • Jun. 21, 2026
The auto parts supplier and Eaton announced a plan to combine Eaton’s mobility business, which makes drivetrain components for heavy-duty vehicles, among other things, with Dana’s existing businesses.
From Barron's • Jun. 11, 2026
The medium-duty and heavy-duty box trucks are manufactured by Isuzu Motors, collaborating with Gatik in design and production.
From The Wall Street Journal • Jun. 8, 2026
Local media say the fibreglass and iron structure has been secured with heavy-duty nylon ropes, while barricades have been erected to keep people and traffic clear of the site.
From BBC • May 27, 2026
You aren’t supposed to think about heavy-duty stuff in high school.
From "Into the Wild" by Jon Krakauer
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
