sort by Rank | Alpha
| Possible Meanings | Rank |
| Academic Professional Program Services | **** |
| Accelerator Pedal Position Sensor | **** |
| All Purpose Potting Soil | *** |
| allen park public schools | *** |
| Aroma Park Primary School (Aroma Park, IL) | *** |
| Australasian Plant Pathology Society | *** |
| Automotive Parts Product Solution | *** |
| American Para Professional Systems | *** |
| Adolescent Pregnancy Prevention Services | *** |
| Alex Phillips Printing Services | *** |
| Adolescent Pregnancy Prevention and Services | *** |
| Appalachian Popular Programming Society | *** |
| Australian Physiological and Pharmacological Society | *** |
| Asynchronous Parallel Pattern Search | *** |
| Alliance for Paralegal Professional Standards | *** |
| Automated Procurement and Payment System | ** |
| bis[4-(4-aminophenoxy) phenyl]sulfone | ** |
| beta-amyloid precursor proteins | ** |
| Asia Pacific Pharmaceutical Symposium | ** |
| Almaden Parents Pre School | ** |
| Amyloid Precursor Protein Secretase | ** |
| All Professional Presentation Systems | ** |
| Active Partners Performance System | ** |
| amyloid precursor protein derivatives | ** |
| amyloid protein precursor derivatives | ** |
| ATE PC Product Services | ** |
| Advanced Professional Presentation Skills | ** |
| Abeles Phillips Preiss and Shapiro | ** |
| ASEAN Pioneer Project Scheme | ** |
| Appropriate Personal Pension Scheme | ** |
| ALBION Park Primary School | ** |
| Applicant Processing Placement System | ** |
| Authorizations and Permits for Protected Species | ** |
| Automated Package Parcel Sorter | ** |
| Ammunition Prepositioning Planning System | * |
| Account Portfolio Planning System | * |
| Association of Principals of Primary Schools | * |
| Australian Plant Pathology Society | * |
| Australian Precast Panel Systems | * |
| Administration Planning Policy Studies | * |
| Association of Police and Public Security | * |
| Association of Providers of Personnel Services | * |
| Army Personnel Proponent System | * |
| ASEAN Pioneer Projects Scheme | * |
| Automated Package Processing Systems | * |
| Automated Payloads Project Specification | * |
| American Para Professional System | * |
| Abatement Plan or Payment Schedule | * |
| Accounts Payable Procurement System | * |
| American Para Professional Syste | * |
| Analytical Programmetric Positioning System | * |
| Army Personnel Planning Software | * |
| Asociaci=n Para la Promoci=n del Sordo | * |
| Asociaci=n Para la Promoci=n Social | * |
| Automated Payroll and Personnel Systems | * |
| Automated Purchasing and Payment System | * |