knob

noun

1
a
: a small rounded ornament or handle
b
: a rounded protuberance : lump
2
: a rounded usually isolated hill or mountain
knobbed adjective
knobby adjective

Examples of knob in a Sentence

a carved walking stick with a silver knob toss a knob of butter into the frying pan
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Features turn out to be like volume knobs for concepts; turn them up and the model will talk about little else. James Somers, New Yorker, 3 Nov. 2025 Door Knobs & Handles Door knobs and handles are touched every day multiple times a day. Ashlyn Needham, Southern Living, 3 Nov. 2025 The way a father keeps reaching for the radio knob every time the silence stretches too long. Jd Barker, Rolling Stone, 3 Nov. 2025 That includes the screen, as well as a series of shortcut button sets, a knob, and dual sliders. Abhimanyu Ghoshal, New Atlas, 31 Oct. 2025 See All Example Sentences for knob

Word History

Etymology

Middle English knobbe; akin to Middle Low German knubbe knob

First Known Use

15th century, in the meaning defined at sense 1b

Time Traveler
The first known use of knob was in the 15th century

Cite this Entry

“Knob.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/knob. Accessed 9 Nov. 2025.

Kids Definition

knob

noun
1
a
: a rounded lump
b
: a small rounded handle
2
: a rounded hill
knobbed adjective
knobby adjective

Medical Definition

knob

noun
: a rounded protuberance or lump
knobby adjective
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!