| Português | Español | Français | English |
| Ufanar-se | Ufanarse, Jactarse, Gloriarse | Rendre fier; Arrogant; Réjouir | To render proud, To flatter, To boast (ufanar-se), To be proud of (ufanar-se) |
| Uivar | Aullar, Ulular | Hurler | To howl |
| Ulcerar | Ulcerar, Llagar | Ulcérer | To ulcerate |
| Ultrajar | Ultrajar, ,Blasfemar, Injuriar, Insultar | Outrager | To insult |
| Ultrapassar | Ultrapasar, Sobrepasar, Sobrepujar, Ultrapasar | Dépasser | To surpass, To pass over or beyound, To exceed the limits, To leave behind, To overtake |
| Umedecer | Humedecer, Humectar, Chapotear, Mojar | Humecter | To humidify, To moisten, To dampen |
| Ungir | Ungir, consagrar, Untar | Oindre | To anoint, To oil, To administer the extreme unction, To purify |
| Unificar | Unificar, Reunir | Unifier | To unify |
| Uniformizar | Uniformar, Hermanar | Uniformiser | To uniformize |
| Unir | Unir, Unificar, Juntar, Ligar, Vicular, Acoplar, Aglutinar | Unir; Assembler; Réunir; Souder | To unite, To join, To unify, To fasten, To attach, To combine |
| Untar | Untar, Engrasar, Lubricar | Oindre; Enduire | To anoint, To daub, To grease, To oil |
| Urbanizar | Urbanizar | Urbaniser | To urbanize |
| Urdir | Urdir, Entretejer, Tramar, Maquinar | Ourdir | To weave, To plot, To scheme, To intrigue, To spin |
| Urgir | Urgir | Être urgent | To urge, To press |
| Urinar | Orinar, Mear (Mijar) | Uriner | To urinate, To piss (mijar) |
| Usar | Usar, Gastar, Vestir, Practicar | Utiliser; Se servir de; Employer; Porter (vêtements) | To use, To wear |
| Usufruir | Usufructuar, Gozar, Poseer | Jouir; Avoir l´usufruit de | To make good use of |
| Usurpar | Usurpar, Extorquir | Ususper | To usurp |
| Utilizar | Utilizar, Usar | Utiliser; Employer; Se servir de | To utilize, To make use of, To take advantage of |