Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: P.O.
  1. A noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army
    - petty officer, PO
Noun: Po
  1. 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
    - polonium, atomic number 84
     
  2. A European river; flows into the Adriatic Sea
    - Po River
Noun: PO
  1. An independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States
    - United States Post Office, US Post Office, Post Office

Derived forms: POs, Pos

Type of: enlisted officer, independent agency, metal, metallic element, noncom, noncommissioned officer, river

Part of: Italia, Italian Republic, Italy

Encyclopedia: Po, Burkina Faso

PO