Abbreviations that start with the letter: R (10,495 entries)

		RATM	Raging Angry Teenage Music	Community » Music
		RATP	Régie autonome des transports parisiens	International » French
		RATP	Reliable Asynchronous Transfer Protocol	Computing » Networking
		RATSASS	Registry of Acronym Terminology Source And Search Service	Internet
		RATT	Race Against The Time	Community » Sports
		RATT	Radio Teletype	Governmental » Military
		RATT	REGIONAL AUTO THEFT Task Force	Community » Law
		RATT	Responsive Awareness Tactical Training	Governmental » Military
		RATT	Rockets All The Time	Governmental » NASA
		RATX	Radiation Therapy	Medical » Physiology
		RAU	Radio Access Unit	Computing » Telecom
		RAU	Radio Access Unit (MSE)	Governmental » Military
		RAU	Randse Afrikaanse Universiteit	Regional » African
		RAU	Rangpur, Bangladesh	Regional » Airport Codes
		RAU	Resource Allocation Unit	Governmental » Police
		RAU	Right As Usual	Community » Educational
		RAU	Royal Awards University	Governmental
		RAU	Russian American University	Academic & Science » Universities
		RAV	Cravo Norte, Colombia	Regional » Airport Codes
		RAV	Radio At Vaughan	Business » Firms
		RAV	Random Action Video	Community » Sports
		RAV	Really A Vehicle	Miscellaneous » Funnies
		RAV	Recreational Active Vehicle	Governmental » Transportation
		RAV	Remote Audio- Video	Computing » Networking
		RAV	Renee, Ashley, Verity	Community » Performing Arts
		RAV	Reparameterized Angle Variation	Academic & Science » Mathematics
		RAVC	Royal Army Veterinary Corps	Medical » Veterinary
		RAVE	Random Acts Of Violent Entertainment	Community » Media
		RAVE	RANKIN Automotive Group, Inc.	Business » NASDAQ Symbols
		RAVE	Rasterization Acceleration Virtual Engine	Computing » General
		RAVE	Reading And Volunteers Excellence	Community » Educational
BTW, Why won't you become an editor?