fasten meaning and definition

FASTEN verb

Definition of fasten (verb)

1. cause to be firmly attached
   • "fasten the lock onto the door"; "she fixed her gaze on the man"
   • synonyms: fix, secure
   • antonym: unfasten
2. become fixed or fastened
   • "This dress fastens in the back"
   • antonym: unfasten
3. attach to
   • "They fastened various nicknames to each other"
4. make tight or tighter
   • "Tighten the wire"
   • synonyms: tighten