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

Experts say to avoid washing darks with linty fabrics, overdoing the detergent and using the heavy-duty wash cycle, among other tips. — Jolie Kerr, Washington Post, 26 Sep. 2026

Pro runs on an Intel Core Ultra 7 Series 3 processor, which is tailored for heavy-duty productivity sessions, AI taskloads, and even some smooth gaming moments. — Kelsey Fogarty, PC Magazine, 25 Sep. 2026

To treat stubborn buildup on backsplashes, use a baking soda paste or a heavy-duty degreaser with a non-scratch scrub sponge to lift the sticky grease layer. — Jolie Kerr, Better Homes & Gardens, 23 Sep. 2026

Astra is the most aggressively powerful (and pricey) model, meant for heavy-duty coding, research, and so on. — Samuel Axon, ArsTechnica, 22 Sep. 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