petty officer (PO)

унтер-офіцер; (головний корабельний) старшина (ВМС)

Chief Petty Officer (CPO)

Master Chief Petty Officer (MCPO)

Master Chief Petty Officer of the Navy

Petty Officer First Class (PO1)

Senior Chief Petty Officer (SCPO)

command senior chief petty officer

duty petty officer

field officer (field-grade officer / senior officer)

non-commissioned officer (NCO) / noncomissioned officer

above water warfare officer

Air Force Officer Training School

air liaison officer (ALO)

air officer`s guide

airlift duty officer

anti-submarine warfare officer

Army Officer Candidate School

assignment officer

calling officer

chemical officer

chief information officer (CIO)

Chief Staff Officer

chief warrant officer

commanding officer (CO)

commissioned officer (ComO)

communications officer

control organization officer

executive officer (XO)

fighter duty officer

fire support officer (FSO)