sort by Rank | Alpha
| Possible Meanings | Rank |
| United Automobile Workers | **** |
| Union of All Workers | **** |
| Unloaded Axle Weight | *** |
| Union Auto Workers | *** |
| Underwater Archaeology Wing | *** |
| Urban Art Warfare | *** |
| Union of Australian Women | *** |
| Union Affiliates With | *** |
| upper airway wall | ** |
| utility arch wire | ** |
| Unions Are Working | ** |
| Unadjusted Actor Weight | ** |
| Union of Auto Workers | ** |
| United Auto Works | ** |
| Unaccounted for Water | ** |
| United Associations of Women | ** |
| United Academic Workers | ** |
| united auto wrkrs | ** |
| United Automotive Workers | ** |
| Unions AUTO WORKERS | ** |
| Universal Access Workstation | ** |
| Usborne Ancient World | ** |
| Useful for Albanian Women | * |
| University of Alberta Water | * |
| University of Arizona Water | * |
| University of Arizona Women | * |
| Unofficial Alabama Women | * |
| Unusually Adverse Weather | * |