sort by Rank | Alpha
| Possible Meanings | Rank |
| Australian Public Service Commonwealth | **** |
| Asia Pacific Satellite Communications | **** |
| Australian Public Service Commission | **** |
| Australian Public Service Commissioner | **** |
| Advanced Professional Skin Care | **** |
| Appeal in State Court | *** |
| Asia Pacific Service Centre | *** |
| Action Plan Steering Committee | *** |
| All Purpose Spell Checker | *** |
| Asia Pacific Support Center | *** |
| Andorran Philatelic Study Circle | *** |
| Asia Pacific Service Center | *** |
| Air Power Studies Centre | *** |
| Animal and Poultry Sciences | *** |
| Andrew P Stewart Center | *** |
| African Peace and Security Council | *** |
| Australian Payments System Council | *** |
| American Pharmacy Services Corporation | *** |
| Alaska Police Standards Council | *** |
| Asia Pacific Space Centre | *** |
| Application Packaging Solution Center | *** |
| Academic Planning Sub Committee | *** |
| Academic Policies and Standards Committee | *** |
| antigen-presenting stimulator cells | ** |
| autologous peripheral stem cells | ** |
| VLRC-activated power station char | ** |
| Agricultural Projects Services Centre | ** |
| Asian Pacific Society of Cardiology | ** |
| Activist Pursuit of Social Causes | ** |
| Acute Physiologic Score for Children | ** |
| Arizona Public Service Company | ** |
| Allegheny Power Service Corporation | ** |
| An Australian Public Service | ** |
| Arab Palestinian Shopping Centers | ** |
| Active Primary School Co | ** |
| Airport Passenger Service Charge | ** |
| Alaska Public Service Commission | ** |
| Academic Policy and Standards Committee | ** |
| Assam Public Service Commission | ** |
| American Philharmonic Sonoma County | ** |
| Association for Pastoral and Spiritual Care | ** |
| Aquatic Performance Swim Club | ** |
| Abbeydale Park Sports Club | ** |
| Aquatic Park Sailing Club | ** |
| Advanced Protein Sequence Converter | ** |
| Automatic Proxy Server Configuration | ** |
| Association of Private Schools and Colleges | ** |
| African Peoples Solidarity Committee | ** |
| Asia Pacific Symposium on Cluster | ** |
| Association of Personnel Search Consultants | ** |
| Australia Public Service Commission | ** |
| Asia Pacific Snow Conference | ** |
| All Pro Sports Center | ** |
| Asia Pacific Society of Cardiology | ** |
| Airsoft Practical Shooting Competition | ** |
| Australian Public Services Commission | ** |
| Airfield Pavement Specialty Conference | ** |
| Academic and Professional Standards Committee | ** |
| Arkansas Public Services Commission | ** |
| Alyeska Pipeline Service Corporation | ** |
| Advance Process Supply Company | ** |
| Asian Prisoner Support Committee | ** |
| Australian Public Sector Commission | ** |
| Africa Peace and Security Council | ** |
| Airline Passenger Service Commitments | ** |
| Australian Police Staff College | ** |
| Action Programme Steering Committee | ** |
| ALASKA PACIFIC SWIM CLUB | ** |
| Ashuganj Power Station Company | ** |
| Automatic Protection Systems Corporation | ** |
| Academic Policy Sub Committee | * |
| Asia Pacific Space Center | * |
| Advisory Panel on Student Concerns | * |
| Area Planning and Services Committee | * |
| Ayersville Pilot Swim Club | * |
| Acclaim Physician Services Corporation | * |
| AIDS Project Snohomish County | * |
| Alaska Police Standard Council | * |
| All Purpose Super Concentrate | * |
| Appalachian Producer Services Corporation | * |
| Architecture and Planning Student Council | * |
| Au Pair Study Centre | * |
| accounts payable scan clerk | * |
| Advanced Particle Simulation Code | * |
| Associated Planners Securities Corporation | * |
| Auditing and Professional Standards Committee | * |
| Australian Parachuting Safety Council | * |
| Automatic Progressive Steam Control | * |
| Academic Planning and Standards Committee | * |
| Academic Programs and Support Center | * |
| Asia Pacific Solidarity Conference | * |
| Association of Professional Staff Councils | * |
| Auditing Professional Standards Committee | * |
| Australian Port Service Charges | * |
| All Purpose Sand Company | * |
| American Pump and Supply Company | * |
| Arab Petroleum Services Company | * |
| Arkansas Public School Computer | * |
| Autodesk Premier Support Center | * |