Index - U
| UK | Duckling.Locale, Duckling.Core |
| Under | |
| 1 (Data Constructor) | Duckling.Quantity.Types |
| 2 (Data Constructor) | Duckling.Distance.Types |
| 3 (Data Constructor) | Duckling.AmountOfMoney.Types |
| under | |
| 1 (Function) | Duckling.Quantity.Types |
| 2 (Function) | Duckling.Distance.Types |
| 3 (Function) | Duckling.AmountOfMoney.Types |
| union | Duckling.Types.Stash |
| Unit | |
| 1 (Type/Class) | Duckling.Quantity.Types |
| 2 (Type/Class) | Duckling.Distance.Types |
| 3 (Type/Class) | Duckling.Volume.Types |
| unit | |
| 1 (Function) | Duckling.Quantity.Types |
| 2 (Function) | Duckling.Distance.Types |
| 3 (Function) | Duckling.Temperature.Types |
| 4 (Function) | Duckling.Volume.Types |
| unitOnly | |
| 1 (Function) | Duckling.Quantity.Helpers |
| 2 (Function) | Duckling.Distance.Helpers |
| Unnamed | |
| 1 (Data Constructor) | Duckling.Quantity.Types |
| 2 (Data Constructor) | Duckling.AmountOfMoney.Types |
| unseen | Duckling.Ranking.Types |
| Url | Duckling.Dimensions.Types, Duckling.Core |
| url | Duckling.Url.Helpers |
| UrlData | |
| 1 (Type/Class) | Duckling.Url.Types |
| 2 (Data Constructor) | Duckling.Url.Types |
| US | Duckling.Locale, Duckling.Core |
| USD | Duckling.AmountOfMoney.Types |