fastening - definition and synonyms

noun [countable] 

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/ˈfɑːsnɪŋ/
singularfastening
pluralfastenings
singularfastener
pluralfasteners

or fastener 

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/ˈfɑːsnə(r)/

  1. 1
    something such as a lock, catch, or bolt that you use to keep a door, gate, or window closed
  2. 2
    something such as a button, zip, or clip that you use to fix together the two parts of something such as a piece of clothing or a bag