Term Full Form | Definition | Meaning
O Oxygen
O Oh
o octet
O Oberst
O Pyrrolysine
O/o Office of
O2 Oxygen
O2O Online to Offline
O3b Other 3 billion
OA OsteoArthritis
OA Open Access
OA Oleic Acid
OA Output Area
OA Order of the Arrow
OA Organic Agriculture
OA OverAll
OA Oficina Anticorrupción
OA Overeaters Anonymous
OA Office Automation
OA Old Alleynian
OA Orthogonal Array
OA Office Assistant
OA Operating Agreement
OA Online Application
OA Office Administration

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