rev

[rev] noun, verb, revved, rev·ving. Informal.
noun
1.
a revolution (in an engine or the like).
verb (used with object)
2.
to accelerate sharply the speed of (an engine or the like) (often followed by up ).
verb (used without object)
3.
(of an engine) to accelerate; become revved (often followed by up ).
4.
rev up, to increase in strength or accelerate sharply: The economy is beginning to rev up.

Origin:
1900–05; short for revolution

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
rev (rɛv) [Click for IPA pronunciation guide]
 
n
1.  revolution per minute: the engine was doing 5000 revs
 
vb , revs, revving, revved
2.  (often foll by up) to increase the speed of revolution of (an engine)

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Revving is always a great word to know.
So is bezoar. Does it mean:
the offspring of a zebra and a donkey.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
Etymonline
Word Origin & History

rev
1916, from earlier noun (1901), shortening of revolution, in reference to the internal combustion engine.
Online Etymology Dictionary, © 2010 Douglas Harper
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Slang Dictionary

rev definition


  1. mod.
    revolting. : Fix you hair! You are so rev!
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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American Heritage
Abbreviations & Acronyms
Rev
Reverend
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
Hurricane forecasters will be trying out a tool this season that lets them see
  if a storm is revving up right before it hits land.
She puffed furiously in quick spurts, a little engine revving.
He further claims that the engine was revving and that he became pinned between
  the vehicle, the fence, and the patrol car.
Don't keep revving up and spinning your tires-this digs you in deeper.
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