| Meaning | Category |
| The University Of Oregon | Academic & Science->Universities |
| Ultima Online | Business->Firms Internet |
| Ultimately Outstanding | Academic & Science->Universities |
| Undetermined origin | Medical->Physiology |
| Unidentified Object | Governmental->Military |
| University Optics | Academic & Science->Universities |
| University of Oregon | Academic & Science->Universities |
| Unlimited Output | Academic & Science->Electronics Computing->General |
| Until Obsolete | Governmental->Military |
| Urinary Output | Medical->Physiology |
Click here to submit an acronym.
