post office

noun3

1. •
   A place (building, office, shop, or counter) concerned with the business of delivering letters, post or mail and selling stamps, etc.
2. •
   An organization that delivers letters.

   • “The post-office is a wonderful establishment!” said she.—“The regularity and despatch of it! If one thinks of all that it has to do, and all that it does so well, it is really astonishing!” — 1815
3. •
   (US, Canada) A party game involving the exchange of kisses.