9 Grammatical Pitfalls


[hev-ee-doo-tee, -dyoo-] /ˈhɛv iˈdu ti, -ˈdyu-/
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.
Origin of heavy-duty
1910-15 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for heavy-duty
  • Lift meat from grill and wrap each piece in a double layer of heavy-duty foil, sealing tightly.
  • They found the biggest bang in the biggest vehicles: heavy-duty trucks and military vehicles.
  • But the heavy-duty diesels employed in ships still have a long way to go.
  • Most heavy-duty machinery is still out repairing the main roads, so local roads are often being restored by hand.
  • Bumpy, unmetalled roads call for good ground clearance and heavy-duty suspensions.
  • Then perhaps a fleece and heavy-duty overalls, followed by another fleece.
  • But you're right that it's not powerful enough for heavy-duty work.
  • Ford is claiming victory in the heavy-duty pickup wars.
  • Meanwhile, heavy-duty mountaineering boots are appropriate for those climbing a mountain.
  • But the top of the list is also studded with a bunch of heavy-duty pickups.
British Dictionary definitions for heavy-duty


noun (modifier)
made to withstand hard wear, bad weather, etc: heavy-duty uniforms
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
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Word Origin and History for heavy-duty

"durable, strong," 1914; see heavy + duty.

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for heavy-duty



Very active; highly productive: The sting identified 46 ''heavy-duty taggers''

[1940s+; fr the term for a particularly strong and durable machine, found by 1914]

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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