What does ABO stand for?

What does ABO mean?

Abo	Abonnement International » German
ABO	Anything But Ordinary Community
ABO	Adaptive Binary Optimization Computing » Software
ABO	American Board of Opticianry Business » Professional Organizations
ABO	Air Base Operability Governmental » Military
ABO	Blood Grouping System Medical » Physiology
ABO	Army Budget Office Governmental » Military
ABO	Agent of Biological Origin Governmental » Military
ABO	Asociación Benedictina Olivetana Centro Educacional International » Guatemalan
ABO	Alpha Boat Originals Business » Products
ABO	Air-Breathing Organ Medical » Veterinary
ABO	Blood types A, B, and O Blood Typing System Governmental » Military
ABO	American Board of Ophthalmology Community » Non-Profit Organizations

Aborigine, Abo, Aboriginal, native Australian, Australian Aborigine(noun): a dark-skinned member of a race of people living in Australia when Europeans arrived