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
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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.
In Chiang Mai, doctor Thanakrit Im-iam was wearing a heavy-duty respirator to protect himself.
From Barron's • Apr. 3, 2026
The plant produces the heavy-duty versions of those trucks, the 2500 and 3500, with about 1,100 a day rolling off the line, according to a United Auto Workers official.
From The Wall Street Journal • Mar. 30, 2026
Beyond its free version of ChatGPT, OpenAI offers an $8 Go plan for casual users, the standard $20 Plus plan and a $200 Pro tier for heavy-duty developers.
From MarketWatch • Mar. 25, 2026
Kempower currently makes a charger that can go as fast as BYD’s infrastructure, but it is only for heavy-duty electric trucks.
From The Wall Street Journal • Mar. 17, 2026
Then I apply some heavy-duty hand sanitizer for good measure.
From "Five Feet Apart" by Rachael Lippincott
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.
