Post Master & Postal System

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Across
  1. 3. large insects that produce a loud buzzing
  2. 4. feeling of sadness and hopelessness
  3. 7. send by aircraft
  4. 9. impossible to understand
  5. 10. a man in charge of the post office
Down
  1. 1. another term for post office
  2. 2. a person who has a official position
  3. 5. a cancellation mark stamped on mail by postal officials; indicates the post office and date of mailing
  4. 6. a code of letters and digits added to a postal address to aid in the sorting of mail
  5. 8. with a deep breath