sort by Rank | Alpha
| Possible Meanings | Rank |
| Universidad Autónoma de Campeche | **** |
| United Aerospace Corporation | **** |
| Urban Agriculture Council | **** |
| University Audit Committee | *** |
| Utility Advisory Committee | *** |
| Unified Access Communications | *** |
| Utah Association of Counties | *** |
| Union Aerospace Corporations | *** |
| Ukrainian Agrarian Confederation | *** |
| Union Aerospace Company | *** |
| United Airlines Company | *** |
| University Affiliate Centers | *** |
| Utah Admin Code | *** |
| Usability Accessibility Center | *** |
| Urban Affairs Center | *** |
| Utah Administrative Code | *** |
| Utah Arts Council | *** |
| University Area Commission | *** |
| University Air Center | *** |
| University Activities Center | *** |
| User Agent Clients | *** |
| Universal Air Cargo | *** |
| Uganda AIDS Commission | *** |
| Uniform Administrative Code | *** |
| Union Activities Council | *** |
| Uganda Amnesty Commission | *** |
| Universal Anglican Church | *** |
| United Arts Council | *** |
| Umbilical Artery Catheter | *** |
| United Amerindian Center | *** |
| Undergraduate Advising Center | *** |
| Unie Amaterskych Cyklistu | *** |
| Utah Agricultural College | *** |
| Ukrainian Antarctic Center | *** |
| Utility Advisory Commission | *** |
| University Advisement Center | *** |
| Underwriting Agencies Council | *** |
| UAS in Asterisk Config | *** |
| United Asset Coverage | *** |
| United Action for Children | *** |
| University Advisory Council | *** |
| Undergraduate Assessment Committee | *** |
| United Air Charters | *** |
| Uwchlan Ambulance Corps | *** |
| United Astrology Conference | *** |
| United Aircraft Company | *** |
| Unified Aircraft Corporation | *** |
| United Astrology Congress | *** |
| Ugandan AIDS Commission | *** |
| Unilateral Apprenticeship Committee | *** |
| User Advisory Council | *** |
| Unique Application Code | *** |
| Ulster Automobile Club | *** |
| User Assistance Center | *** |
| United African Church | *** |
| Union Affiliated Contractors | *** |
| Unionville Alliance Church | *** |
| Unified Audit Committee | *** |
| Urgent Appeal Case | *** |
| Upper Airspace Control | *** |
| University Advisory Committee | *** |
| Ultimo Aquatic Centre | *** |
| Undergraduate Advisory Committee | *** |
| Unaligned Access Control | *** |
| Universal Automatic Computer | *** |
| University Accreditation Commission | ** |
| Universal Acceptance Corporation | ** |
| U amniotic cells | ** |
| Umbilical arterial catheters | ** |
| umbilical artery catheterization | ** |
| umbilical artery catheters | ** |
| uniform attenuation correction | ** |
| upper alimentary cancers | ** |
| upper arm circumference | ** |
| urinary albumin concentration | ** |
| urinary albumin concentrations | ** |
| urine albumin concentration | ** |
| urine alcohol concentration | ** |
| Unitary Air Conditioner | ** |
| University Advising Council | ** |
| Unit Approval Committee | ** |
| Urban Advisory Council | ** |
| Uniform Annual Charge | ** |
| undifferentiated type adenocarcinomatous component | ** |
| United Air Care | ** |
| United Arab Command | ** |
| Urban Affairs Commission | ** |
| Upflow Anaerobic Contact | ** |
| Uniform Advisory Committee | ** |
| United Anglers of California | ** |
| Union Acceptance Corporation | ** |
| human amnion cells | ** |
| human amniotic cells | ** |
| midupper arm circumference | ** |
| Unit Assessment Committee | ** |
| Uganda Airlines Corp | ** |
| Uniform Annual Charges | ** |
| Unified Arab Command | ** |
| Unbalanced Asynchronous Class | ** |
| Undergraduate Affairs Council | ** |
| Umvoti AIDS Centre | ** |
| United Antiterrorist Coalition | ** |
| University Admission Center | ** |
| undeb amaethwyr cymru | ** |
| University Activity Council | ** |
| University of Arizona College | ** |
| Understanding and Acceptance | ** |
| Universal Access Concentrators | ** |
| Utilities Advisory Commission | ** |
| Users Advisory Committee | ** |
| Undergraduate Advisory Council | ** |
| User Action Code | ** |
| Utilization and Cost | ** |
| United Air Cleaning | ** |
| University Academic Council | ** |
| University Accreditation Committee | ** |
| Unincorporated Area Council | ** |
| UTA Advising Center | ** |
| Union Advisory Committee | ** |
| Universal Air Conditioner | ** |
| Universities Admissions Centres | ** |
| Upwey Anglican Church | ** |
| Unions of Agricultural Cooperatives | ** |
| Urantia Association of Colombia | ** |
| User Acoount Control | ** |
| Unemployment Action Center | * |
| Union Activities Committee | * |
| University Accommodation Center | * |
| University Activities Commission | * |
| University Admissions Committee | * |
| Upper Air Control | * |
| Urban Alliance Clan | * |
| United Asian Coalition | * |
| Uniden America Corporation | * |
| Unincorporated Area Councils | * |
| University Access Committee | * |
| University Activities Committee | * |
| University Alzheimer Center | * |
| Utilities Agencies and Corporatised | * |
| Undergraduate Admissions Center | * |
| Underwater Archaeological Consortium | * |
| Union Athletique Chatelineau | * |
| United Astrological Congress | * |
| University Aquatic Club | * |
| Upper Airspace Center | * |
| Urban Affairs Council | * |
| Urea Amide Channel | * |
| Uyole Agricultural Center | * |
| Unified Area Command | * |
| United Action Caucus | * |
| Usage And Custom | * |
| United Aerospace Command | * |
| Universal Application Corruptor | * |
| Ucisik Ahmet Cuneyt | * |
| Ufficio Atti e Contratti | * |
| Ultimate Album Covers | * |
| Unidata Advisory Committee | * |
| unit air coordinators | * |
| Universities with Agriculture Colleges | * |
| University of Adelaide Computer | * |
| University of Akron College | * |
| University of Akron Computer | * |
| University of Alabama Chapter | * |
| University of Alabama College | * |
| University of Alabama Crystallog | * |
| University of Alberta Campus | * |
| University of Alberta Chemistry | * |
| University of Alberta Chinchaga | * |
| University of Amsterdam Chemistry | * |
| University of Arizona Computer | * |
| University of Arkansas Center | * |
| University of Arkansas Chinese | * |
| University of Arkansas College | * |
| University of Arkansas Cooperation | * |
| University of Auckland Computer | * |