Simple Definition of knob
: a round switch on a television, radio, etc.
: a round handle on a door, drawer, etc.
: a small lump or piece of something
Examples of knob in a sentence
a carved walking stick with a silver knob
<toss a knob of butter into the frying pan>
Origin and Etymology of knob
Middle English knobbe; akin to Middle Low German knubbe knob
First Known Use: 14th century
Rhymes with knob
Ab, blob, bob, cob, daub, fob, glob, gob, hob, job, lob, mob, nob, rob, slob, snob, sob, squab, stob, swab, throb, yob
KNOB Defined for Kids
Definition of knob for Students
1 : a small rounded handle
2 : a rounded switch on an electronic device
3 : a rounded lump <Her dog has a knob of a tail.>
4 : a rounded hill
Seen and Heard
What made you want to look up knob? Please tell us where you read or heard it (including the quote, if possible).