Browse Abbreviations Starting with O

List of acronyms, initialisms, and meanings beginning with the letter O.

OCU OAJ ORDB OPA OSTP OORP OGRA ODTG OPERA OSG ODE OBUS OME-AEN ODHT OYMGSG OFW OCOS OSIF OLLO OFBC OZO OMAC OOTH OMPTO OTTC ORDS OCDP OFC ORTF OPONI OCRGDF OAC OWAC OIRLLC OTC OWASA
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