1. a protective helmet worn by construction workers and others in industrial settings
2. a construction worker or blue-collar worker
Usage: informal

Examples

• All workers must wear a hardhat on the construction site.
• She adjusted her hardhat before entering the factory.
• The foreman handed out hardhats to the new employees.
• Safety regulations require hardhats in this area.
• The hardhats gathered for their morning briefing.
• He’s been a hardhat for over twenty years.
• The union represents thousands of hardhats across the state.