sort by Rank | Alpha
| Possible Meanings | Rank |
| Agency for Public Administration Development | ** |
| air-powder abrasive device | ** |
| 3-acetylpyridine adenine dinucleotide | ** |
| 3-acetylpyridine-adenine-dinucleotide | ** |
| Affinity-purified IgG anti-DNA | ** |
| Addictive Psycho Active Drugs | ** |
| Act on Protection Against Discrimination | ** |
| And Pelukis Aneka Daya | ** |
| Australian Performing Arts Directory | ** |
| Activated Pulsed Amperometric Detection | ** |
| Anterior Posterior Abdominal Diameter | * |
| Arts Promotion Association for the Disabled | * |
| Asia Pacific Association of Derivatives | * |
| Asynchronous Packet Assembler Disassembler | * |
| And the Portuguese Agency for Development | * |
| AnchorPad Anti theft Devices | * |