- a rounded lump or protuberance
- a handle, usually round, of a door, drawer, etc.
- a similar device which is turned to control operations of electronic or electrical equipment, as a radio or TV receiver
- a rounded hill or mountain; knoll
Origin of knobMiddle English knobbe from or akin to Du, a knot, knob, bud from Indo-European an unverified form gn-eu-bh from base an unverified form gen-: see knead
with knobs on