sort by Rank | Alpha
| Possible Meanings | Rank |
| Ultra High Definition | *** |
| Unstable Hemoglobin Disease | ** |
| University of Houston Department | ** |
| User Help Desks | ** |
| Ultra High Dilutions | ** |
| Uncompressed HDTV Disk | ** |
| University of Helsinki Department | * |
| Units of Horizontal Distance | * |
| Universal Healthcare Distributor | * |
| University Helsinki Department | * |
| University of Hamburg Department | * |
| University of Hawaii Department | * |
| University of Hull Department | * |