The meaning of KNOB is a small rounded ornament or handle. How to use knob in a sentence. a small rounded ornament or handle; a rounded protuberance : lump; a rounded usually isolated hill or mountain… See the full definition. Games; Word of the Day; Grammar; Wordplay; New Slang; Rhymes; Word Finder; Thesaurus; Join MWU; More ...

KNOB definition: 1. a round handle, or a small, round device for controlling a machine or electrical equipment: 2…. Learn more.