heavy-duty

UK: ˌhevi ˈdjuːti | US: ˌhevi ˈduːti

Definition

  1. adj. designed to withstand rough use or demanding conditions

  2. adj. involving intense or sustained effort

  3. adj. (of a vehicle) built for carrying heavy loads

Structure
heavy <weighty>duty <task>
Etymology

The term "heavy-duty" emerged in the early 19th century, combining "heavy" (Old English hefig, meaning "weighty" or "burdensome") and "duty" (Old French deu, from Latin debitum, meaning "obligation" or "task"). Originally used for machinery or equipment designed to endure strenuous workloads, it later expanded metaphorically to describe intense efforts or robust systems. The morphemes retain their literal meanings, reflecting the word's practical and figurative applications.

Examples

  1. The factory uses heavy-duty machinery to process raw materials.

  2. She wore heavy-duty boots for the mountain hike.

  3. This heavy-duty cleaning solution removes stubborn stains.

  4. The truck is built for heavy-duty hauling.

  5. His job involves heavy-duty problem-solving under tight deadlines.