sort by Rank | Alpha
| Possible Meanings | Rank |
| Research Evaluation Unit | **** |
| Renewable Energies Unit | **** |
| Rusia Esperantista Unio | *** |
| Research for Undergraduates | *** |
| Residential Equivalent Units | *** |
| Race Equality Unit | *** |
| Research Experiences of Undergraduates | *** |
| Research Experience for Undergrads | *** |
| Rural Enterprise Unit | *** |
| Research for Undergrads | *** |
| Remote Electronics Unit | *** |
| relative ELISA units | ** |
| Research Education for Undergraduates | ** |
| ram expansion units | ** |
| Recurrent Equine Uveitis | ** |
| radiation effect units | ** |
| Renewable Energy Unit | ** |
| Racial Equality Unit | ** |
| Radio Engineering Unit | ** |
| Rapid Enforcement Unit | ** |
| Residential Energy Use | ** |
| Recruitment and Examinations Unit | ** |
| Received in Europe | ** |
| Report Edit Utility | ** |
| Resilient Equalized Undercarriage | ** |
| Rectal Endoscopic Ultrasonography | ** |
| Research Experience of Undergraduates | ** |
| Resources for Educational | ** |
| Revenue Enhancement Unit | ** |
| Red Educativa Uruguaya | ** |
| Reseach Experience for Undergraduates | ** |
| Rural Electrification Unit | ** |
| Remote Electronic Unit | * |
| Roof Exhaust Unit | * |
| Remote Entry Unit | * |
| Remote Engineering Unit | * |
| Resources Evaluation Unit | * |
| recruit evaluation unit | * |
| Referat EuropSische Union | * |
| Report an Earthquake University | * |
| Requisition Expeditor Unit | * |