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

The North American market for heavy-duty trucks fell 7% in the first three quarters, but was offset by 8% growth in Europe. — Jenni Reid,lee Ying Shan,paulina Likos, CNBC, 5 Nov. 2026

According to the researchers, the resulting material can bond metals, glass, and wood with sufficient strength for load-bearing and heavy-duty applications used in vehicle and equipment manufacturing. — Muskan Bhatia, Interesting Engineering, 5 Nov. 2026

Both pest control expert Jason Napolski and Bossel stress the importance of storing food in heavy-duty plastic containers to keep mice away. — Tessa Cooper, The Spruce, 4 Nov. 2026

In these cases, higher-wattage mixers are objectively better at mixing firm doughs and other heavy-duty tasks. — Bestreviews, Chicago Tribune, 3 Nov. 2026

Word History

First Known Use

1914, in the meaning defined at sense 1

Rhymes for heavy-duty

• agouti
• 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