Browse Abbreviations Starting with O

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

OPAA OTAS OUZ OCCP OCTL OSFS ODF OLW OBN OLAW OAA OMS ORTHO OPZONE OLR OESD OTD OPU OCP OHSAS ONH OPTN OZNOE OLEP OLC OSHM ODCS OAUS OICS ONUG OCRA ONS OUA OIL OWAM OCA
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