1. cause to be firmly attached
- fasten the lock onto the door
2. become fixed or fastened
- This dress fastens in the back
3. attach to
- They fastened various nicknames to each other
4. make tight or tighter
Similar word(s): tighten
Sentences with fasten as a verb:
- The sailor fastened the boat to the dock with a half-hitch.
- Fasten your seatbelts!
- Can you fasten these boards together with some nails?
- to fasten a blow