Popularity	Country	Term	Definition	Main Category	Subcategory
		OPC	Organic Photo-Conductor	Technology » General
		OPC	Opel Performance Center	Sports & Games » Motorsports
		OPC	Ontario Police College	Governmental » Police
		OPC	Otsuka Pharmaceutical Company	Business » Companies & Corporations
		OPC	Oligomeric Proanthocyanidins	Medical » Biochemistry
		OPC	Oodua Peoples Congress	Associations & Organizations » Regional Organizations
		OPC	Ovamboland People’s Congress	Governmental » Politics
		OPD	Oakland Police Department	Governmental » Departments & Agencies
		OPD	Outpatient Department	Medical » Hospitals
		OPD	Orlando Police Department	Governmental » Departments & Agencies
		OPEC	Organization of Petroleum Exporting Countries	Associations & Organizations » Governmental Organizations
		OPEC	Ohio Prevention and Education Conference	Associations & Organizations » Conferences & Events
		OPeNDAP	Open-source Project for a Network Data Access Protocol	Computing » Protocols
		OPGW	Optical Ground Wire	Academic & Science » Electrical
		OPORD	Operation(s) Order	Governmental » Military
		OPR	Operator/Operate/Operation	Computing » General Computing
		OPR	Office of Population Research	Academic & Science » Research & Development
		OPR	Office of Professional Responsibility	Governmental » Departments & Agencies
		OPR	Overall Pressure Ratio	Academic & Science » Engineering
		OPR	Overnight Policy Rate	Business » Finance
		OPR	Organisation du Peuple Rodriguais	Governmental » Firms & Organizations
		OPR	Old Parochial Registers	Society & Culture » Religion & Spirituality
		OPR	Old Port Rum	Society & Culture » Food & Drink
		OPS	Office of Public Safety	Governmental » Departments & Agencies
		OPS	Omaha Public Schools	Academic & Science » Universities & Institutions