You searched for: “post office
post office (s) (noun), post offices (pl)
1. A public place where mail is received and sorted, distributed, delivered, and also where stamps are sold and other related services are provided: Post offices, or postal services, around the world usually sort mail and packages and provide delivery of such items to those who are supposed to receive them.
2. Etymology: the "post" that is used in this term came from a variant of Latin posita, a past participle form of ponere, "to place" or "to put".