sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Automated Personal Data Systems | **** |
| Armour Piercing Discarding Sabot | *** |
| Asia Pacific Defence and Security | *** |
| Augusta Preparatory Day School | *** |
| Association of Program Directors in Surgery | *** |
| acute pulmonary damage syndrome | ** |
| Association of Public Diplomacy Scholars | ** |
| Association of Professional Drycleaners | ** |
| Academic Performance Database System | ** |
| Artists Professional Development Scheme | ** |
| Auxiliary Power Distribution Systems | ** |
| arrangement of the pancreaticobiliary ductal system | ** |
| Association Professionnelle Du Spectacle | ** |
| antiparallel double-stranded helical | ** |
| Acoustic Piano Digital System | ** |
| Advanced Power Distribution System | ** |
| Asosiasi Periau Danau Sentarum | ** |
| Autoliv Product Development System | ** |
| Air Picture Display System | ** |
| Autonomous Pathogen Detector System | ** |
| An Automated Podium Sized | ** |
| Automotive Products Distribution Services | ** |
| Auburn Placer Disposal Service | ** |
| Advanced Product Design Specialties | ** |
| Alternative Public Distribution System | ** |
| Active Physical Device Simulator | * |
| Advanced Packaging Distribution Specialist | * |
| Advanced Power Drive Systems | * |
| Amersham Playgoers Dramatic Society | * |
| Annual Plan Direction Setting | * |
| Automatic Power Dumping System | * |
| Automotive Parts Distribution Section | * |
| Advanced Personnel Data System | * |
| Australian Prospective Diabetes Study | * |
| Automatic Payroll Deduction Scheme | * |
| All Purpose Date Stamp | * |
| Attitude and Position Determination System | * |
| Advanced Packaging Development Support | * |
| Alcohol Policies in Developing Societies | * |
| Assinatura Premiada Da Semana | * |
| Association of Program Directors of Surgery | * |
| Automatic Payroll Deduction Systems | * |
| Automatic Procurement Documentation Systems | * |
| Analog Processor Discriminator Stations | * |
| Androgynous Peripheral Docking Systems | * |
| Apogee Photo Directory Schools | * |