sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Alberta Professional Outfitters Society | *** |
| Agency for Personal Service | *** |
| Advisory Panel on Standards | *** |
| Arizona Prosthetic Orthotic Services | *** |
| Associazione Professionale Operatori Shiatsu | ** |
| Action Process Object Schema | ** |
| Asia Pacific Orthopaedic Symposium | ** |
| Advanced Point of Sale | ** |
| Associate Professional Officers Scheme | ** |
| Associate Professional Officer Scheme | ** |
| Adult Performance Outcome Survey | ** |
| Alberta Professional Outfitter S | ** |
| Albo Professionale Operatori Shiatsu | * |
| Asynchronous Point of Sale | * |
| Asian Pacific Orthodontic Society | * |
| Advanced high frequency power assemblies | * |
| The influence of different Air Pollution levels On the degree of forest Soil acidification and forest Stability | * |