English abbreviations from o9 to oadr
- O9(Officer grade: Vice Admiral or Lieutenant General)
- OA(Occupational Analysis)
- OAA(OxAloAcetate)
- OAB(Ordem dos Advogados do Brasil (Brazilian Law Board))
- OAC(Organization for African Community)
- OACES(Online Academic Communication Environment And Support)
- OACW(Ohio Athletic Conference Wrestling)
- OACWC(Ohio Athletic Conference Wrestling Championship)
- OAD(Original Air Date)
- OADM(Optical Add-Drop Multiplexer)
- OADR(Originating Agency Determination Required)
