hard hat

US /ˈhɑːrd hæt/
UK /ˈhɑːrd hæt/
"hard hat" picture
1.

topi keras, topi keselamatan

a helmet made of hard material, worn by workers to protect their heads from falling objects or blows

:
All construction workers must wear a hard hat on site.
Semua pekerja binaan mesti memakai topi keras di tapak.
He put on his hard hat before entering the mine.
Dia memakai topi kerasnya sebelum memasuki lombong.