Ключевые слова: address, array, arrive, await, background, bill, box, business, communication, company, confidentiality, contact, container, corporation, delivery, drawer, envelope, exchange, flag, generic, got, green, inbox, individual, inside, interior, key, keyhole, lattice, letter, letterbox, lock, mail, mailbox, mailing, mailman, marker, message, metal, metallic, metalline, news, notice, number, open, package, paper, post, postbox, security,