Synonyms and related words :
PP, RD, RFD, air-express, airfreight, book post, consign, correspondence, direct mail, direct-mail selling, dispatch, drop a letter, embark, expedite, export, express, forward, fourth-class mail, frank, freight, halfpenny post, junk mail, letter post, letters, mail, mail-order selling, mailing list, newspaper post, parcel post, post, post day, registered mail, remit, rural delivery, rural free delivery, sea mail, seapost, send, send away, send forth, send off, ship, special delivery, special handling, surface mail, transmit,