From Middle English knobbe, from Middle Low German knobbe, knoppe (“a knot in wood”), from Proto-Germanic *knuppô (“lump, clod”), from Proto-Indo-European *gneub-, *gneup- (“to press, crush”). Cognate with Dutch knop (“button, knob”), German Knopf (“button, knob”), Swedish knopp (“knob”), Old English cnoppa (“knob”). See also knop.
- (RP) enPR: nŏb, IPA: /nɒb/, X-SAMPA: /nQb/
- (US) enPR: nŏb, IPA: /nɑb/, X-SAMPA: /nAb/
- Rhymes: -ɒb
- Homophone: nob
knob (plural knobs)
- A rounded protuberance, handle, or control switch.
- (geography) A prominent rounded hill.
- A rounded ornament on the hilt of an edged weapon; a pommel.
- A prominent, rounded bump along a mountain ridge.
- (UK, New Zealand, slang) A penis.
- (genetics) This word needs a definition. Please help out and add a definition, then remove the text
- a knobbed chromosome
- (slang, pejorative) A contemptible person.
- (cooking) A dollop, an amount just larger than a spoonful (usually referring to butter)
- See also Wikisaurus:penis
Derived terms 
- The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.
- IPA: /knoːb/, [kʰnoːˀb̥]
knob n and c
Usage notes 
In the sense speed on water it is common gender; the plural indefinite form is knob; no definite forms. In the sense looping of a rope it is neuter gender.