sort by Rank | Alpha
| Possible Meanings | Rank |
| State Primary Road System | **** |
| Single Point Registration Scheme | *** |
| Standardized Premises Registration System | *** |
| State Police Retirement System | *** |
| Science and Program Review Subcommittee | *** |
| socijalisticka partija republike srpske | *** |
| scleroderma-pulmonary-renal syndrome | ** |
| Social Performance Rating Scale | ** |
| Sydney Psychosocial Reintegration Scale | ** |
| Socialist Party of RS | ** |
| small proline-rich proteins | ** |
| Spastic Paraplegia Rating Scale | ** |
| Social Policy Research Services | ** |
| Society for the Promotion of Roman Studies | ** |
| Society for Photogrammetry and Remote Sensing | ** |
| Strengthened Poverty Reduction Strategy | ** |
| Single Point Response Spectrum | ** |
| Surface Plasmon Resonance Spectroscopy | ** |
| Suspended Procurement Request System | ** |
| Slovenian Pattern Recognition Society | ** |
| Statistical Performance Reporting System | ** |
| Student Personal Responsibility Scale | ** |
| Sistem Pelaporan Rumah Sakit | ** |
| Scatter-to-primary ratios | * |
| Strategic Performance Reporting System | * |
| Supplier Performance Rating System | * |
| Shelby Paranormal Research Society | * |
| SLAC Phone Request System | * |
| Social and Personal Responsibility Scale | * |
| Society of Pelvic Recontructive Sugeons | * |
| Sprayed Polyurethane Roofing Systems | * |
| Soceitey for Photogrammetry and Remote Sensing | * |
| Society for Photogrammetry Remote Sensing | * |