An independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States
English: United States Post Office, US Post Office, Post Office, PO
poEnglish
PO, Po, P.O., Po River, Post Office
Noun
A European river, flows into the Adriatic Sea
English: Po, Po River
A noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army
English: petty officer, PO, P.O.
1 more noun senses
A radioactive metallic element that is similar to tellurium and bismuth, occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor
English: polonium, Po, atomic number 84