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fastener ( Noun)
UK /ˈfɑːsnə(r)/ US /ˈfæsnər/
Plural
fasteners
1-
B1
a thing used to close something with an open oiece
-> He asked when fasteners were first discovered in the exam. How can I know this?
-> All fasteners on the plane are vital. You cannot use them as you wish.
-> Does anyone know in which area the zipper, one of the fasteners, was used first?
Synonym
junction piece, joint bar