What does RG stand for?

What does RG mean?

RG	Radio Grade Academic & Science » Electronics
RG	Regional Gathering Community
RG	Robert Golden Community » Famous
RG	Rear Gear Governmental » Transportation
RG	Readiness Group Governmental » Military
RG	Request Granted Governmental » US Government
RG	Radio Guide Community » Media
RG	Receiver General Business » Products
RG	Rotating Gobo projector Business » Products
RG	Retired General Governmental » Military
RG	Rabies Glycoprotein Medical » Laboratory
RG	Roadstar Guitar Community » Music
RG	Regular Guy Internet » Chat
RG	Radio Government Governmental
RG	Rapid Gravity Academic & Science » Physics
RG	Rocket Girl Miscellaneous » Names and Nicknames
RG	1bit B&W 4bit CMYK Raster Graphics format Computing » File Extensions
RG	Regression Graphics Computing » General
RG	Remember the Gear Governmental » Transportation
RG	Random Guess Community » Sports
RG	Regression Graph Academic & Science » Mathematics
RG	Roberto Gucci Community » Famous
RG	Really Gorgeous Internet » Chat
RG	Richie Ginther Community » Famous
RG	Radial Ground Academic & Science » Amateur Radio