Popularity	Country	Term	Definition	Main Category	Subcategory
		OPAC	Office Proficiency Assessment and Certification	Business » Business Terms
		OPC	OLE for Process Control	Technology » Robotics & Automation
		OPC	One Person Company	Business » Companies & Corporations
		OPC	Optical Proximity Correction	Technology » Energy & Recycling
		OPC	Optimum Power Calibration	Technology » General
		OPC	Orthodox Presbyterian Church	Society & Culture » Religion & Spirituality
		OPC	Office of the Parliamentary Counsel	Governmental » Departments & Agencies
		OPC	Organic Photo-Conductor	Technology » General
		OPC	Opel Performance Center	Sports & Recreations » Motor Sports & Cycling
		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