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Definition of P.O.
1. Noun. A noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army.
Exact synonyms: Petty Officer, Po
Specialized synonyms: Master-at-arms, Scpo, Senior Chief Petty Officer
Generic synonyms: Enlisted Officer, Noncom, Noncommissioned Officer
Specialized synonyms: Master-at-arms, Scpo, Senior Chief Petty Officer
Generic synonyms: Enlisted Officer, Noncom, Noncommissioned Officer
Definition of P.O.
1. Abbreviation. post office ¹
¹ Source: wiktionary.com