parcel post

communications or parcels sent or carried through the postal system only parcel post bearing a return address and not exceeding size and weight limits will be accepted Synonyms correspondence, matter, mail, post [chiefly British], snail mailRelated Words airmail, airpost, certified mail, registered mail, rural delivery, rural free delivery, special delivery, special handling; direct mail, junk mail, mailer; card, dispatch, epistle, letter, message, missive, note, postal card, postcard, printed matter; bundle, package, shipment