What does RE stand for?

What does RE mean?

RE	Reference Governmental » Military
RE	Real Estate Community » Housing
RE	Re-Election Governmental » US Government
RE	Resident Evil Governmental » US Government
RE	Religious Education Community » Religion
RE	Right Eye Medical » Physiology
RE	Regular Expression Academic & Science » Mathematics
RE	Regular Expression Computing » General
RE	Research And Education Community » Educational
Re	Rhenium Academic & Science » Electronics
RE	Rhenium Academic & Science » Chemistry
RE	Regular Education Community » Educational
RE	Rare Earth Academic & Science » Chemistry
RE	Russian English Regional » Language Codes (2 Letters)
RE	Rotary Engine Governmental » Transportation
RE	Reproductive Endocrinology Medical » Hospitals
RE	Rear Entry Community » Law
RE	Rear Engine Governmental » Transportation
RE	Earth Radii Governmental » NASA
RE	Rear Echelon Governmental » Military
RE	Reproductive Endocrinologist Business » Positions
RE	Repeat Every Computing » Software
RE	Re-Edition Community » Media
RE	Russian Exchange Business » Stock Exchange
RE	The Retail Environment Miscellaneous » Unclassified

re(n.): the musical syllable used for the second tone in the ascending diatonic scale.