Browse Abbreviations Starting with O

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

OAD OTOH Os OD OCD OER OTIS OV OCT OTT OMG OIC OK OH OSF OTCEI OTB OTF OTFL OOPS OOP OODBMS OODB OOD OOA OPS OLA OIOS OP CIT OBCE OESA OCE-BR ON OM OMR ONA
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