0 a hat made of a strong substance that is worn by workers to protect their heads
1 a hat made of a strong material which is worn to protect the head esp. of someone who builds buildings
2 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:
3 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.
Health and safety at work has come a long way since we began introducing kicker boards on construction sites and insisting that hard hats were worn.
Barry spends $675 on a locker with some pewter objects in it - and stumbles across a pair of engraved oil rig hard hats.
My trade union decided that a miner should not be allowed to go underground unless he wore a hard hat.
I was wearing the standard design which is favoured by many riders—a peaked hard hat.
Some said that they would not wear a hard hat.
I put a hard hat on him and took him round the production lines.
Wearing a hard hat when riding, hunting or steeplechasing is one of the rules of those who govern those sports.
Wearing a hard hat will reduce pain, suffering and disability.
