sort by Rank | Alpha
| Possible Meanings | Rank |
| Radiology and Diagnostic Services | *** |
| Reactive Airway Dysfunction Syndrome | *** |
| Rochford and District Swimming | *** |
| Reporting and Database System | *** |
| Rutgers Antivirus Delivery Service | *** |
| Radiation Analytics Detection System | *** |
| Reporting and Data System | *** |
| Research and Doctoral Studies | ** |
| reservoir aerosol delivery system | ** |
| Reactive Airway Disease Syndrome | ** |
| Regional Alcohol and Drug Services | ** |
| Resource Assessment and Development Section | ** |
| Rapid Application Development Studio | ** |
| recurrent anterior dislocation of the shoulder | ** |
| Research and Development Services | ** |
| Radar Altimeter Database System | ** |
| Return Application Database System | ** |
| Regional Archive Data Server | * |
| Rural Advisory Development Services | * |
| Racing Arrow Directional Stickers | * |
| Radar and Algorithm Display System | * |
| Regulated Antigen Delivery System | * |
| Retardant Aerial Delivery System | * |
| Repeat Audio Detection System | * |
| Reportable Animal Disease System | * |
| Rotor Analysis and Diagnostic System | * |
| Radar Algorithm Display System | * |
| Research Administration Database System | * |
| Robbins Action to Deliver Shelter | * |
| Radar Acquisition and Display System | * |
| Radar Algorithm and Display System | * |
| Reactive Aqueous Defluxing System | * |
| Regional Area Differential System | * |
| Radiation and Dosimetry Service | * |
| Rightsizing and Documentation System | * |
| Radar and Algorithms Display System | * |
| Reading Arts Diary Summary | * |
| Realtime Analysis and Display System | * |