1. A hard protuberance; a hard swelling or rising; a bunch; a lump; as, a knob in the flesh, or on a bone.
2. A knoblike ornament or handle; as, the knob of a lock, door, or drawer.
3. A rounded hill or mountain; as, the Pilot Knob. [U. S.]
4. Arch. See Knop.
Knob latch, a latch which can be operated by turning a knob, without using a key.