Browse Abbreviations Starting with O

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

OPU OCP OHSAS ONH OPTN OZNOE OLEP OLC OSHM ODCS OAUS OICS ONUG OCRA ONS OUA OIL OWAM OCA OLLON OCPD OPTP OLTA OTL OHP OPLF OSBI OLS OCFS ONTCCY OSD OCTO OFU OMP OHC OREP
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