hard hat

Definitions of hard hat
  1. noun
    a lightweight protective helmet (plastic or metal) worn by construction workers
    synonyms: safety hat, tin hat
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    type of:
    helmet
    a protective headgear made of hard material to resist blows
  2. noun
    a worker skilled in building offices or dwellings etc.
    synonyms: construction worker
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    type of:
    artificer, artisan, craftsman, journeyman
    a skilled worker who practices some trade or handicraft
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