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

Now, the revitalized Scout Motors is producing vehicles with 1,000 pound-feet of torque, massive power for quick acceleration and heavy-duty tasks. —Chase Jordan updated November 13, Charlotte Observer, 13 Nov. 2025

Wash the garment or table linen as recommended on the care label using a heavy-duty detergent that contains enzymes. —Mary Marlowe Leverette, Southern Living, 12 Nov. 2025

Testing reveals an average power exceeding 200 kW in optimal steady-state conditions, surpassing the energy requirements for heavy-duty vehicles. —Atharva Gosavi, Interesting Engineering, 8 Nov. 2025

It’s made of heavy-duty 30-gauge PVC to support several people at once. —Bestreviews, Mercury News, 6 Nov. 2025

Word History

First Known Use

1914, in the meaning defined at sense 1

Rhymes for heavy-duty

• 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