Hardhat (noun)

1. A type of protective helmet worn to protect the head from falling objects or other hazards on a construction site or in other industrial settings.
2. A protective headgear made of hard material worn in construction sites, mining and other work places that are prone to injuries to the head.

Origin:

Compound word hard + hat, refers to a type of protective helmet worn to protect the head from falling objects or other hazards on a construction site or in other industrial settings.

Examples:

1. He had to wear a hardhat while working on the construction site.
2. The workers all put on their hardhats before starting the demolition.
3. A hardhat is a type of protective helmet worn to protect the head from falling objects or other hazards on a construction site or in other industrial settings.
4. Hardhats are typically made of a hard plastic or other durable material and are designed to absorb and distribute impact forces.
5. Hardhats are often required by law on construction sites and other hazardous work environments to protect workers from head injuries.