P.O.

noun

a noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army

• Syn: ↑petty officer, ↑PO

• Hypernyms: ↑noncommissioned officer, ↑noncom, ↑enlisted officer

• Hyponyms: ↑master-at-arms, ↑senior chief petty officer, ↑SCPO

* * *

1. parole officer.

2. petty officer.

3. postal (money) order.

4. post office.

* * *

po.,

Baseball. putout or putouts.

p.o.,

1. post office.

2. Baseball. putout or putouts.

Po (no period),

polonium (chemical element).

P.O.,

1. Peninsular and Oriental (Steam Navigation Company).

2. petty officer.

3. pilot officer (in the Royal Air Force).

4. postal order.

5. post office.

* * *

abbr

1 post office

2 postal order