sort by Rank | Alpha
| Possible Meanings | Rank |
| acute polymorphic psychotic disorder | ** |
| Accelerator and Pulse Power Division | ** |
| Atmospheric Pollution Prevention Division | ** |
| Adult Probation and Parole Department | ** |
| AMEDD Personnel Proponent Directorate | * |
| Academic Practice Plan Directors | * |
| Association of Pain Program Directors | * |
| Association of Pediatrics Program Directors | * |
| Aero Propulsion and Power Directorate | * |
| Airborne Particulate and Precipitation Data | * |
| AMEDD Personnel Proponency Department | * |
| AMEDD Personnell Proponency Department | * |
| Anti Piracy Products Dongles | * |
| Asociaci=n Para la Paz y el Desarme | * |