| Uomo | Uomo |
| up | aumentar |
| up and leave | mandarse a cambiar |
| up and over door | puerta abatible |
| up front | por adelantado |
| up hill and down dale | por los montes y por los valles |
| up one's sleeve | debajo |
| up quark | quark arriba |
| up the ante | redoblar la apuesta |
| Up the Bracket | Up the Bracket |
| up till now | hasta ahora |
| up to | hacia |
| up to here | hasta el gorro |
| up to now | hasta ahora |
| up to standard | a nivel |
| up to the time of | hasta |
| up until now | hasta ahora |
| up-and-coming | joven y prometedor |
| up-front | honrado |
| up-market | de lujo |
| up-to-date | al día |
| up-to-the-minute | al día |
| Upanishad | Upanishad |
| Upanishads | Upanishad |
| Upas tree | Antiaris toxicaria |
| upbeat | optimista |
| upbraid | regañar |
| upbraiding | reproche |
| upbreed | criar |
| upbringing | educación |
| UPC | UPC |
| upchuck | vomito |
| upcoming | próximo |
| update | poner al día |
| updating | actualización |
| upend | refutar |
| upfront | honrado |
| upgrade | amplificación |
| upgrading | amplificación |
| upheaval | agitación |
| upheave | elevar |
| Upheavel | Sacudida I |
| uphill | duro |
| uphold | sostener |
| upholster | acolchar |
| upholsterer | tapicero |
| upholstery | tapicería |
| upkeep | conservación |
| Upkeeping | Reparación y mantenimiento |
| upland antshrike | batará montano |
| uplift one's spirits | levantarle los ánimos de alguien |
| uplifting | reconfortante |
| upload | subida |
| upmost | en primer lugar |
| UPN | United Paramount Network |
| Upolu | Upolu |
| upon | sobre |
| upon impact | en el momento del impacto |
| upon inspection | para su examen |
| upper | superior |
| Upper and Lower Egypt | Bajo Egipto |
| Upper atmosphere | Alta atmósfera |
| Upper Austria | Alta Austria |
| Upper Bavaria | Alta Baviera |
| Upper Canada | Alto Canadá |
| Upper Carniola | Gorenjska |
| upper case | mayúscula |
| Upper Chamber | Cámara Alta |
| upper class | clase alta |
| upper classes | clase alta |
| Upper Demerara-Berbice | Alto Demerara-Berbice |
| Upper East Region | Alta Ghana Oriental |
| Upper Egypt | Alto Egipto |
| Upper Franconia | Alta Franconia |
| upper hand | ventaja |
| Upper House | Cámara Alta |
| Upper house of the german parliament | Consejo Federal |
| upper layer | capa superior |
| upper leather | pala |
| Upper level | Gymnasium |
| Upper Lusatia | Alta Lusacia |
| Upper Memory Area | Área de memoria superior |
| Upper memory blocs | Memoria alta |
| Upper Nile | Nilo Superior |
| Upper Normandy | Alta Normandía |
| Upper Palatinate | Alto Palatinado |
| Upper Paleolithic | Paleolítico Superior |
| upper part of the body | parte superior del cuerpo |
| Upper Peru | Alto Perú |
| Upper River Division | División Upper River |
| Upper secondary school | Gymnasium |
| Upper Silesia | Alta Silesia |
| Upper Silesian Industrial Region | Región metropolitana de Silesia Superior |
| Upper Silesian Industry Area | Área Industrial de Silesia Superior |
| Upper Silesian Metropolitan Union | Unión Metropolitana de Alta Silesia |
| Upper Sorbian | Alto sórabo |
| Upper Sorbian language | Alto sórabo |
| Upper Takutu-Upper Essequibo | Alto Takutu-Alto Essequibo |
| Upper Volta | Alto Volta |
| Upper West Region | Alta Ghana Occidental |
| Upper-atmospheric lightning | Rayo |
| upper-case letter | letra mayúscula |
| upper-class | de la clase alta |
| uppercase | mayúscula |
| uppercase letter | letra mayúscula |
| uppercut | gancho |
| uppermost | en primer lugar |
| uppity | desdeñoso |
| uppityness | presuntuosidad |
| Uppsala | Uppsala |
| Uppsala Cathedral | Catedral de Uppsala |
| Uppsala County | Provincia de Uppsala |
| Uppsala Municipality | Uppsala |
| Uppsala University | Universidad de Uppsala |
| upright | derecho |
| upright piano | piano vertical |
| Upright spindle | Polo |
| uprising | levantamiento |
| uproar | alboroto |
| uproarious | estruendoso |
| uproot | desarraigar |
| ups and downs | altibajos |
| Upsala Glacier | Glaciar Upsala |
| upscale | de lujo |
| upset | espantar |
