verb (adverb, mainly tr)
Also: knock together informal to assemble quickly; improviseto knock up a set of shelves
British informal to waken; rouseto knock someone up early
slang to make pregnant
British informal to exhaustthe heavy work knocked him up
cricket to score (runs)
(intr) tennis squash badminton to practise or hit the ball about informally, esp before a match
a practice session at tennis, squash, or a similar game
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Words nearby knock up
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
Idioms and Phrases with knock up
Make pregnant, as in The young girl said she was afraid of getting knocked up. [Slang; early 1800s]
Injure or damage, as in This coffee table got all knocked up in the moving van.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.