29 Moby Thesaurus words for "RFD":
   PP, RD, airmail, book post, correspondence, direct mail,
   direct-mail selling, express, fourth-class mail, frank,
   halfpenny post, junk mail, letter post, letters, mail,
   mail-order selling, mailing list, newspaper post, parcel post,
   post, post day, registered mail, rural delivery,
   rural free delivery, sea mail, seapost, special delivery,
   special handling, surface mail

	

	RFD
     Report Fragmentation Done [bit] (CATNIP)

	

	RFD
     Ready-For-Data

	

	RFD
     Request For Discussion (Internet, Usenet), "RfD"