sort by Rank | Alpha
| Possible Meanings | Rank |
| All Party Parliamentary Committee | **** |
| Asia Pacific Peace Committee | **** |
| Advanced Program-to-Program Communications | **** |
| Advanced Program to Program Communications | **** |
| Art in Public Places Committee | **** |
| Adolescent Pregnancy Prevention Coalition | **** |
| Advanced Placement Physics C | **** |
| Asia Pacific Paintball Championship | **** |
| Asia Pacific Policy Center | *** |
| Asia Pacific Philanthropy Consortium | *** |
| advanced program-to-program (peer-to-peer) communications | *** |
| Asia Pacific Potash Corporation | *** |
| Annenburg Public Policy Center | *** |
| Academic Policy and Planning Committee | *** |
| Asia Pacific Physics Conference | *** |
| Association Public Policy Committee | *** |
| Adaptive Pole Placement Control | *** |
| Advocacy and Public Policy Committee | *** |
| All Parents of Preschool | *** |
| Associazione Piccoli Proprietari Case | *** |
| Association of Presidents of Public Community | *** |
| Advocating for Public Policy Change | *** |
| Academic Planning and Policy Committee | *** |
| Asia and Pacific Population Conference | *** |
| Asian Pacific Poultry Conference | *** |
| Academic Policy and Procedures Committee | *** |
| Academic Programs and Policies Committee | *** |
| Arizona Peruvian Paso Club | *** |
| Asia Pacific Post Cooperative | *** |
| Academic Personnel Policy Committee | *** |
| Argus Printing and Publishing Company | *** |
| Asia Pacific Policy Centre | *** |
| Australian Pioneer Pistachio Company | *** |
| Animal and Pest Plant Control | *** |
| Asian and Pacific Population Conference | ** |
| all polyethylene patellar components | ** |
| Academic Program and Policy Committee | ** |
| Asia Pacific Productivity Conference | ** |
| Asian Pacific Postal College | ** |
| Assoc for Public Policy | ** |
| Asia Pacific Processing Center | ** |
| Anhui Provincial Planning Commission | ** |
| Advocacy for Public Policy Change | ** |
| Adaptive Plug and Play Components | ** |
| Adjacent Pitch Period Comparison | ** |
| Asia Pacific Philanthropic Consortium | ** |
| Average Projected Paid Circulation | ** |
| Agency for Post Privatization Control | ** |
| Année Post Premier Cycle | ** |
| Australasian Postgraduate Philosophy Conference | ** |
| Arab Petroleum Pipeline Co | ** |
| Alabama Pulp and Paper Council | ** |
| Acute Posterior Placoid Chorioretinitis | ** |
| Academic Policy and Program Committee | ** |
| Academic Programs and Planning Committee | ** |
| Advanced Program to Program Computing | ** |
| Asian Pacific Philanthropy Consortium | ** |
| Application Program to Program Communication | ** |
| Asia Pacific Postal College | ** |
| Albay Provincial Party Committee | ** |
| Automated Project Performance Control | ** |
| Arboretum Park Preservation Coalition | ** |
| Arab Permanent Postal Commission | ** |
| Asia Pacific Poultry Conference | ** |
| Asian Pacific Peace Committee | ** |
| Academic Policies and Procedures Committee | ** |
| Adolescent Pregnancy Prevention Committee | ** |
| Agency for Post Privatisation Control | ** |
| Accounting Policies and Procedures Committee | ** |
| Application Program to Program Communications | ** |
| Arctic Pollution Prevention Certificate | ** |
| Academic Personnel Policies Committee | ** |
| Aerosols Properties Processes and Climate | ** |
| Assault Pioneer Platoon Commanders | ** |
| Active Pressure Pulse Compensator | * |
| Asia Pacific PLWHA Coalition | * |
| Associated Press of Pakistan Corporation | * |
| Atlantic Provinces Pharmacy Council | * |
| Academic Planning and Priorities Committee | * |
| Advance Program to Program Communications | * |
| Audit Planning and Priority Committee | * |
| Academic Policy and Personnel Committee | * |
| Advanced Peer to Peer Computing | * |
| Academic Planning and Policy Council | * |
| Advanced Poly Propylene Co | * |
| Asian Pacific Potash Corporation | * |
| Associate Professors Promotions Committee | * |
| Academic Press Professional Cata | * |
| Advanced Program to Program Converter | * |
| Alberti Pen Pal Connection | * |
| Amended Putnam Pit Complaint | * |
| Asia Pacific Philanthropy Consor | * |