What does AO stand for?

What does AO mean?

AO	Anarchy Online Internet » Chat
AO	Angola Regional » Countries
AO	Amount Of .... Business » Accounting
AO	Angle Of .... Medical » Physiology
AO	Aorta Medical » Physiology
AO	All The Other Internet » Chat
AO	AntiOxidant Miscellaneous » Plastics
AO	Adults Only Community » Film Censorship
AO	Atlantic Ocean Academic & Science » Ocean Science
AO	Adaptive Optics Academic & Science » Physics
AO	Analog Output Computing » Hardware
AO	Administrative Officer Governmental » Military
AO	Area of Operations Governmental » Military
AO	Alpha Omega Academic & Science » Universities
AO	Acousto Optic Academic & Science » Electronics
AO	Arctic Oscillation Academic & Science » Ocean Science
AO	Always Open Academic & Science » Electronics
AO	Area of Operation Governmental » Military
AO	Action Officer Governmental » Military
AO	Adjustable Objective Medical » Physiology
AO	Analog Out Academic & Science » Electronics
AO	Agent Orange Governmental » Military
AO	All Output Miscellaneous » Unclassified
AO	Auto Off Computing » Hardware
AO	All Off Governmental » Transportation