Definition of "hardhats" []

• Plural form of hardhat. (noun)

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• "Swiss time, a gigantic drilling machine named Sissi broke through a final rock wall deep beneath the Swiss Alps, prompting cheers from hundreds of workers in hardhats and sending waves of euphoria and pride through the tiny Alpine nation."
• "And what do you think those idiots was thinking, I mean show up in hardhats and green vest to be working inside."
• "Bobby and Mac, standing out there in hardhats, a banner stretched over their heads reading "McCain/Jindal: We know the Drill""