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Synonyms

heavy-duty

American  
[hev-ee-doo-tee, -dyoo-] / ˈhɛv iˈdu ti, -ˈdyu- /

adjective

  1. providing an unusual amount of power, durability, etc..

    heavy-duty machinery; heavy-duty shoes.

  2. very important, impressive, or serious.

    heavy-duty involvement; heavy-duty questions.


heavy-duty British  

noun

  1. made to withstand hard wear, bad weather, etc

    heavy-duty uniforms

  2. subject to high import or export taxes

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

When Tesla announced its plans for the Semi nearly a decade ago, it was seen as a chance to change heavy-duty trucking just as its affordable and versatile Model 3 helped popularize electric cars.

From The Wall Street Journal

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

Air activity has increased significantly here in the last 72 hours, with the United States putting in some of its heavy-duty bomber forces.

From BBC

It meant the 35-year-old George was still doing heavy-duty ball carrying in the final five minutes as England chased in vain.

From BBC

I’ll be honest, I might have preferred flowers, or at least a more feminine handbag rather than a heavy-duty satchel, but still it was a lovely thought!

From Literature