sort by Rank | Alpha
| Possible Meanings | Rank |
| Stillbirth and Neonatal Death Support | *** |
| Self-Administered Nicotine-Dependence Scale | ** |
| Stillbirth and Newborn Death Support | ** |
| Systems Analysis and Design School | ** |
| Specialized Active Networking for Distributed Simulation | ** |
| Southern Arizona Network for Down Syndrome | ** |
| Stop Atherosclerosis in Native Diabetics Study | ** |
| Stillborn and Neonatal Death Society | ** |
| Specialized Active Networking for Distributed | ** |
| System for Accurate Nearshore Depth Surveying | * |
| Sea Animal Noise Database System | * |
| Socialite Athletes Networking Division of San Diego | * |
| Simulation Analysis and Data System | * |