sort by Rank | Alpha
| Possible Meanings | Rank |
| Awards Presented at the Annual | **** |
| Alternative Project Delivery Approaches | *** |
| Afar Pastoralist Development Association | *** |
| Acidified Potato Dextrose Agar | *** |
| Afar Pastoral Development Association | *** |
| Associazione Persone Diversamente Abili | ** |
| amplified pixel detector array | ** |
| Army Physical Disability Appeal | ** |
| Adjuster Preliminary Damage Assessment | ** |
| N-(4',4'-azo-in-pentyl)-21-deoxy-ajmalinium | ** |
| Apple Programmers Developers Association | ** |
| Alliance of the Pennsylvania Dental Association | ** |
| Association of Peyronies Disease Advocates | ** |
| Andhra Pradesh Darts Association | ** |
| American Parliamentary Debate Assocation | ** |
| Asian Population Development Association | ** |
| Associates Planning Dotson Architects | * |
| Aceh Plantation Development Authority | * |
| Alliance of Professional Design Associations | * |
| Asia Population and Development Association | * |
| Air Pollution Database Aerometry | * |