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English definition of “hard hat”

hard hat

noun [C]
 
 
WORKPLACE
a type of hat that is made of a strong material to protect the head, worn especially by people on building sites or in factories: Construction workers in hard hats.
a person whose job is to do physical work in the building industry: Hard hats around the country are increasingly busy setting I-beams and rivets on new towers, warehouses, industrial parks, and retail space.
(Definition of hard hat from the Cambridge Business English Dictionary © Cambridge University Press)
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