Focus on the pronunciation of hard hat
English definition of “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.