What Does AO Stand For?

AO has more than one possible meaning :

• AO - Abnormal Occurrence
• AO - Administrative Officer
• AO - Administrative Order
• AO - Air Overseas
• AO - Annotated Outline
• AO - Announcement Of Oppurtunity
• AO - Arctic Oscillation
• AO - Assembly Order
• AO - Atomic Orbital
• AO - Office Of The Administrator
• AO - Oiler Underway Replenishment

If you know of another acronym for AO, please suggest it as a new acronym for AO.