sort by Rank | Alpha
| Possible Meanings | Rank |
| sequentially determined acid detergent fiber | ** |
| South Africa Defense Force | ** |
| Soldaten Auf Der Flucht | ** |
| Spent Aircraft Deicing Fluid | ** |
| State Aid Distribution Fund | ** |
| Scottish Arts Development Forum | * |
| Southern African Development Fund | * |
| Shinnston Area Development Foundation | * |
| Sports Aid for the Disabled Fund | * |
| South Australian Department of Fisheries | * |
| Students for A Drug Free | * |