What does REV stand for?

What does REV mean?

REV	Review Medical » Laboratory
REV	Review Governmental » US Government
REV	Review Internet » Chat
REV	Review Governmental » Military
REV	Review Computing » Software
REV	Review Governmental » Transportation
REV	Review Medical » Physiology
REV	Review Academic & Science » Universities
REV	Review Governmental » NASA
REV	Revision Computing » Software
REV	Revised Governmental » US Government
REV	Revised Community » Media
REV	Revision Governmental » NASA
REV	Reverse Community » Sports
REV	Revolution Governmental » Military
REV	Revolution Community » Sports
REV	Revolution Governmental » US Government
REV	Reversed Community » Law
REV	Revenge Governmental » US Government
REV	Revenge Community » Sports
REV	Revenge Community » Law
REV	Revenge Governmental » Military
REV	Revenue Business » General
REV	Reverend Community » Religion
REV	Reverend Business » Positions

rev(n.): a revolution of the crankshaft or other rotating part within an engine.