sort by Rank | Alpha
| Possible Meanings | Rank |
| Geek Article and Review System | ***** |
| Global Absolute Return Strategies | **** |
| Global Asset Recovery Services | **** |
| Global Agricultural Research System | *** |
| Guernsey Amateur Radio Society | *** |
| Ground Airborne Radio System | *** |
| German Antarctic Receiving Station | *** |
| General Assembly Retirement System | *** |
| Gwinnett Amateur Radio Society | *** |
| German Aviation Research Society | *** |
| Gibraltar Amateur Radio Society | *** |
| Greater Atlanta Rose Society | *** |
| Gainesville Amateur Radio Society | *** |
| Groningen Activities Restriction Scale | ** |
| Global Assessment of Recent Stress | ** |
| Gait Abnormality Rating Scale | ** |
| Grimsby Amateur Radio Society | ** |
| Geological Application of Remote Sensing | ** |
| Global Adaptive Random Search | ** |
| Guidelines of the American Rose | ** |
| Ghana Amateur Radio Society | ** |
| Geoff Alford Research Services | ** |
| Global Asset Recovery Solutions | ** |
| Gas Atomization Reaction Synthesis | ** |
| German Aviation Research Seminar | ** |
| Government Agencies Road Safety | ** |
| Geneva Amateur Radio Society | ** |
| Global Absolute Return Strategy | ** |
| Grant Application and Reporting System | ** |
| Groningen Activiteiten Restrictie Schaal | ** |
| Gilliam Autism Rating Scales | ** |
| Gozo Amateur Radio Society | ** |
| Geek Article Review System | ** |
| GERI Annual Research Symposium | ** |
| Grid Adoption Research Service | ** |
| Group and Audience Response Systems | ** |
| Gillian Autism Rating Scale | * |
| Graduations and Academic Records | * |
| Group Audience Response Systems | * |
| Gulf of Alaska Recirculation Study | * |
| Global Accessibility Rating Scale | * |
| Gwinnett Archaeological Research Society | * |
| GOES Archive and Retrieval System | * |
| Government Archives and Records Services | * |
| Greek And Roman Studies | * |
| General Application Restraint System (small aircraft) | * |
| Gothenburg Art Rock Society | * |
| Ground and Airborn Radio System | * |