1. (n.) A protuberance; a swelling; a knob; a button; hence, rising ground; a summit. See Knop.

2. (v. t.) To bite; to bite off; to break short.

3. (v. t.) To strike smartly; to rap; to snap.

4. (v. i.) To make a sound of snapping.

5. (n.) A sharp blow or slap.