bump cap
noun1
UK A hard hat.
2
US A baseball cap with an inner protective shell of hard plastic.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
noun — 2 senses
UK A hard hat.
US A baseball cap with an inner protective shell of hard plastic.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
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