Post office

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Across
  1. 4. The address of the sender.
  2. 5. A container for receiving mail.
  3. 6. mail The fastest, most expensive option for shipping mail.
  4. 10. mail A faster, more expensive option for shipping mail.
Down
  1. 1. A paper container for a letter.
  2. 2. A box or container used for shipping.
  3. 3. A marking on mail that indicates the date and time of mailing.
  4. 7. box A locked mailbox at a post office.
  5. 8. A small adhesive label used for postage.
  6. 9. The act of bringing mail to a recipient.