Nearby words

  1. knobbly,
  2. knobby,
  3. knobcone pine,
  4. knobhead,
  5. knobkerrie,
  6. knock about,
  7. knock back,
  8. knock cold,
  9. knock dead,
  10. knock down

Idioms

Origin of knock

before 1000; 1890–95 for def 4; Middle English knokken, knoken (v.), Old English cnocian, cnucian; cognate with Old Norse knoka to thump, knock

Related formsknock·less, adjectivere·knock, verbun·knocked, adjectiveun·knock·ing, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for knock up

knock up

verb (adverb, mainly tr)

noun knock-up

a practice session at tennis, squash, or a similar game

knock

/ (nɒk) /

verb

noun


Word Origin for knock

Old English cnocian, of imitative origin; related to Old Norse knoka to hit

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

Word Origin and History for knock up
Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with knock up

knock up

1

Make pregnant, as in The young girl said she was afraid of getting knocked up. [Slang; early 1800s]

2

Injure or damage, as in This coffee table got all knocked up in the moving van.

knock

In addition to the idioms beginning with knock

  • knock about
  • knock back
  • knock cold
  • knock dead
  • knock down
  • knock down with a feather
  • knock for a loop
  • knock into a cocked hat
  • knock it off
  • knock off
  • knock oneself out
  • knock on wood
  • knock out
  • knock over
  • knock over with a feather
  • knock someone's block off
  • knock someone's socks off
  • knock the bottom out of
  • knock the living daylights out of
  • knock the socks off
  • knock together
  • knock up

also see:

  • beat (knock) into someone's head
  • beat (knock) the living daylights out of
  • (knock) down to size
  • (knock) off someone's feet
  • school of hard knocks
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.