sort by Rank | Alpha
| Possible Meanings | Rank |
| Repubblica Araba Saharawi Democratica | **** |
| rochester area school district | *** |
| Rockwood Area School District | *** |
| Resource Allocation Service Delivery | *** |
| Renal Association Standards Document | ** |
| restrictive atrial septal defect | ** |
| RA with severe dysplasia | ** |
| Romanian Association of Securities Dealers | ** |
| Rural Agency for Sustainable Development | ** |
| Research and Administrative Support Division | * |