"RE" is an abbreviation meaning "Referencing:" followed by the item being referenced.
For example:
RE: The question posed on Wikianswers.
"RE:" is an abbreviation meaning "Referencing:" followed...
The English word 're' has a few distinct uses: 1: a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining...