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English definition of “hard hat”

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hard hat

noun [C] uk   us  
a hat made of a strong substance that is worn by workers to protect their heads
Translations of “hard hat”
in Chinese (Traditional) (建築工人等戴的)安全帽…
in Chinese (Simplified) (建筑工人等戴的)安全帽…
(Definition of hard hat from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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