Popularity Country/ Region Term Full Form | Definition | Meaning Main Category Subcategory
Greece OA Olympic Air Transport & Travel » Airline Codes
Australia OA Opera Australia Arts » Musical groups
Australia OA Order of Australia Society & Culture » Awards
Worldwide OA Operational Amplifier Academic & Science » Electronics
Worldwide OA Operational Analysis Academic & Science » Mathematics
Worldwide OA Oxford Archaeology Associations & Organizations » Educational Organizations
Worldwide OA OctopAmine Academic & Science » Biology
Worldwide OA Obstacle Avoidance Technology » Robotics & Automation
Worldwide OA Ordinary Annuity Business » Finance
Germany OA OberArzt Medical » Healthcare
Sweden OA Oskar Andersson Society & Culture » Celebrities & Famous
Worldwide OA Office Action Governmental » Documents & Certificates
Worldwide OA Optic Axis Academic & Science » Physics
Worldwide OA Operational Architecture Business » Business Operations
United States OA Oxford Academy Academic & Science » Universities & Institutions
Australia OA Obituaries Australia Computing » Websites
Croatia OA Obavještajna Agencija Governmental » Security & Defence
Worldwide OAB OverActive Bladder Medical » Diseases & Conditions
Brazil OAB Ordem dos Advogados do Brasil Associations & Organizations » Professional Associations
Worldwide OAB Oxford Annotated Bible News & Entertainment » Journals & Publications
Oman OAB Oman Arab Bank Business » Companies & Corporations
Japan OAB Oita Asahi Broadcasting Business » Companies & Corporations
Worldwide OAS Organization of American States Associations & Organizations » International Orgaizations
Canada OAS Old Age Security Governmental » Policies & Programs
Worldwide OAS OpenAPI Specification Computing » Programming & Development