[ nob ]
See synonyms for: knobknobbedknobbing on

  1. a projecting part, usually rounded, forming the handle of a door, drawer, or the like.

  2. a rounded lump or protuberance on the surface or at the end of something, as a knot on a tree trunk.

  1. Architecture. an ornamental boss, as of carved work.

  2. a rounded hill, mountain, or elevation on a ridge.

verb (used with object),knobbed, knob·bing.
  1. to produce a knob on.

  2. to furnish with a knob.

  1. (in stone cutting) to knock off (excess stone) preparatory to dressing; knobble; skiffle.

Origin of knob

1350–1400; Middle English knobbe<Middle Low German

Other words from knob

  • knoblike, adjective

Words that may be confused with knob Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use knob in a sentence

British Dictionary definitions for knob


/ (nɒb) /

  1. a rounded projection from a surface, such as a lump on a tree trunk

  2. a handle of a door, drawer, etc, esp one that is rounded

  1. a round hill or knoll or morainic ridge

  2. British taboo a slang word for penis

  3. and the same to you with knobs on or and the same to you with brass knobs on British informal the same to you but even more so

verbknobs, knobbing or knobbed
  1. (tr) to supply or ornament with knobs

  2. (intr) to form into a knob; bulge

  1. British taboo to have sexual intercourse with (someone)

Origin of knob

C14: from Middle Low German knobbe knot in wood; see knop

Derived forms of knob

  • knobby, adjective
  • knoblike, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for knob


[ nŏb ]

  1. A prominent, rounded hill or mountain.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.