Definition of hard hat
1a : a protective hat made of rigid material (such as metal or fiberglass) and worn especially by construction workersb : a construction worker
2 : a conservative who is intolerant of opposing views
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First Known Use of hard hat
15th century
HARD HAT Defined for English Language Learners
hard hat
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noun
Definition of hard hat for English Language Learners
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: a hat that is worn by workers at a building site to protect their heads from falling objects
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