noun
- a device or tool used to make something tight or tighter
Examples
- Use the belt tightener to adjust the tension on the engine belt.
- The guitar’s string tightener helps maintain proper tuning.
- He bought a new chain tightener for his bicycle.
- The fence tightener made the wire much more secure.
- This rope tightener will keep the tarp from flapping in the wind.
- The mechanic recommended replacing the old belt tightener.