- A cusp is a pointed end.
- A point on a tooth is a cusp.
- The cusp on his back tooth had broken.
- The point on a crescent is a cusp.
- They could see the cusp of the moon.
- When two curved lines meet, they create a cusp.
- A cusp is a point from which everything changes.
- The scientist was at the cusp of a great discovery.