American Dictionary

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Definition fastener in American English

fastener noun

[countable] noun
/ˈfæs(ə)nər/
/ˈfæs(ə)nɪŋ/
1

something such as a button, zipper, or clip that you use to attach the two parts of something such as a piece of clothing or a bag to each other

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2

something such as a lock, catch, or bolt that you use to keep a door, gate, or window closed

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Definition fastener in American English