hardhat

noun
UK /ˈhɑːd.hæt/
US /ˈhɑːrd.hæt/

A hardhat is a strong hat that keeps your head safe at work.

The builder wore a yellow hardhat on the building site.


OTHER MEANINGS

2. A construction worker, especially one who wears such a helmet.

The hardhats finished the new bridge ahead of schedule.

3. A small, hard, round hat worn for riding or sports.

She strapped on her hardhat before riding the horse.

4. A rigid protective cap used by soldiers or police.

The officer adjusted his hardhat before the parade.