Popularity Country/ Region Term Full Form | Definition | Meaning Main Category Subcategory
Worldwide O Oxygen Academic & Science » Chemistry
Worldwide O Oh Academic & Science » Language & Linguistics
Worldwide o octet Academic & Science » Units
Germany O Oberst Governmental » Military
Worldwide O Pyrrolysine Medical » Biochemistry
Worldwide O/o Office of Business » Business Terms
Worldwide O2 Oxygen Academic & Science » Chemistry
Worldwide O2O Online to Offline Business » Business Terms
Worldwide O3b Other 3 billion Business » Companies & Corporations
Worldwide OA OsteoArthritis Medical » Diseases & Conditions
Worldwide OA Open Access Computing » Internet
Worldwide OA Oleic Acid Academic & Science » Chemistry
United Kingdom OA Output Area Governmental » Census & Statistics
United States OA Order of the Arrow Associations & Organizations » Regional Organizations
Worldwide OA Organic Agriculture Trees & Plants » Farming & Agriculture
Worldwide OA OverAll Academic & Science » Language & Linguistics
Argentina OA Oficina Anticorrupción Governmental » Departments & Agencies
Worldwide OA Overeaters Anonymous Associations & Organizations » International Orgaizations
Worldwide OA Office Automation Business » Business Terms
United Kingdom OA Old Alleynian Academic & Science » Universities & Institutions
Worldwide OA Orthogonal Array Academic & Science » Mathematics
Worldwide OA Office Assistant Business » Job Titles
Worldwide OA Operating Agreement Governmental » Law & Legal
Worldwide OA Online Application Computing » Internet
Worldwide OA Office Administration Business » Business Terms