P.O.

Found in Anh - Anh (Wordnet)

Definition Noun : Petty Officer : A noncommissioned officer in the United States Navy or Coast Guard, with a rank comparable to a sergeant in the Army. The term "p.o." is an abbreviation. Usage The abbreviation "p.o." is used primarily in written or informal contexts to refer to a Petty Officer. It is often seen in internal memos, notes, or casual speech within naval contexts. It is typically w...