Meaning of “fastener” in the English Dictionary

"fastener" in British English

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fastenernoun [ C ]

uk /ˈfɑːs.ən.ər/ us /ˈfæs.ən.ɚ/

(Definition of “fastener” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"fastener" in American English

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fastenernoun [ C ]

us /ˈfæs·ə·nər/

a button or other device for joining together the separate parts of something, esp. clothes

(Definition of “fastener” from the Cambridge Academic Content Dictionary © Cambridge University Press)