sort by Rank | Alpha
| Possible Meanings | Rank |
| Unit Audit Dalam | **** |
| Universitas Ahmad Dahlan | **** |
| universal african dance | *** |
| Universal Audio DSP | *** |
| Urban Agricultural Development | *** |
| Ustvarjalno Astronomsko Drustvo | *** |
| Utah Association of the Deaf | *** |
| umbilical artery Doppler | ** |
| upper airway disease | ** |
| upper airways disorders | ** |
| uranyl acetate dihydrate | ** |
| Uric acid dihydrate | ** |
| University of Aberdeen Department | ** |
| UNDERFLOOR AIR DISTRIBUTION | ** |
| Understand Architect Deploy | ** |
| University of Aarhus Denmark | ** |
| United Animal Defenders | ** |
| Union for A Democratic | ** |
| United Arts Division | ** |
| Under Age Drinking | ** |
| University of Amsterdam Department | ** |
| Universal Access Devices | ** |
| Unconfined Aquatic Disposal | * |
| Universal Access Device | * |
| Universal Atomic Disintegrator | * |
| Urban Archaeological Databases | * |
| Uniform Acceptance Date | * |
| Unilateral Assured Destruction | * |
| University of Aarhus Department | * |
| University of Arizona Department | * |
| Updated Authorizations Document | * |
| University of Alberta Department | * |
| Ukraine Administrative Divisions | * |
| Unified Agenda Document | * |
| Unique Assorted Designs | * |
| Univeristy of Aberdeen Department | * |
| University Alumni and Development | * |
| University of AarhusDepartments | * |
| University of Alabama Department | * |
| University of Auckland Department | * |
| Upper Atmosphere Dynamics | * |
| User Accessible Database | * |