Popularity Country/ Region Term Definition Main Category Subcategory
Worldwide OP Out of print Miscellaneous » Stationery
Worldwide OP Original Poster Miscellaneous » Chat slang
Worldwide OP Outpatient Medical » Hospitals
United States OP Ocean Pacific Business » Companies & Corporations
Worldwide OPAC Online Public Access Catalog Academic & Science » Language & Linguistics
Worldwide OPAC Office Proficiency Assessment and Certification Business » Business Terms
Worldwide OPC OLE for Process Control Technology » Robotics & Automation
India OPC One Person Company Business » Companies & Corporations
Worldwide OPC Optical Proximity Correction Technology » Energy & Recycling
Worldwide OPC Optimum Power Calibration Technology » General
United States OPC Orthodox Presbyterian Church Society & Culture » Religion & Spirituality
United Kingdom OPC Office of the Parliamentary Counsel Governmental » Departments & Agencies
Worldwide OPC Organic Photo-Conductor Technology » General
Germany OPC Opel Performance Center Sports & Games » Motorsports
Canada OPC Ontario Police College Governmental » Police
Japan OPC Otsuka Pharmaceutical Company Business » Companies & Corporations
Worldwide OPC Oligomeric Proanthocyanidins Medical » Biochemistry
Nigeria OPC Oodua Peoples Congress Associations & Organizations » Regional Organizations
Namibia OPC Ovamboland People’s Congress Governmental » Politics
United States OPD Oakland Police Department Governmental » Departments & Agencies
Worldwide OPD Outpatient Department Medical » Hospitals
United States OPD Orlando Police Department Governmental » Departments & Agencies
Worldwide OPEC Organization of Petroleum Exporting Countries Associations & Organizations » Governmental Organizations
United States OPEC Ohio Prevention and Education Conference Associations & Organizations » Conferences & Events
Worldwide OPeNDAP Open-source Project for a Network Data Access Protocol Computing » Protocols