http://www.blass.com.au/definitions/d/rss Blass Online English Dictionary. en-us Copyright 2008 Blass.com.au 720 http://www.blass.com.au/blass_logo.gif http://www.blass.com.au/ 182 43 Free online english dictionary. http://www.blass.com.au/definitions/d noun: the 4th letter of the Roman alphabet