- a revolution (in an engine or the like).
- to accelerate sharply the speed of (an engine or the like) (often followed by up).
- (of an engine) to accelerate; become revved (often followed by up).
- rev up, to increase in strength or accelerate sharply: The economy is beginning to rev up.
Origin of rev
First recorded in 1900–05; short for revolution
- Revelation; Revelations.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- revolution per minutethe engine was doing 5000 revs
- (often foll by up) to increase the speed of revolution of (an engine)
- Bible Revelation
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 rev
1916, from earlier noun (1901), shortening of revolution, in reference to the internal combustion engine. Related: Revved; revving.
Online Etymology Dictionary, © 2010 Douglas Harper