post office is a noun meaning "a local branch where postal services are available". It carries 3 recorded senses.
a local branch where postal services are available
an independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States
a children's game in which kisses are exchanged for pretended letters
Definitions, synonyms and semantic relations for post office come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.