| United States customary units | Sistema consuetudinario statunitense |
| United States Declaration of Independence | Dichiarazione di indipendenza degli Stati Uniti |
| United States Department of Defense | United States Department of Defense |
| United States Department of Energy | United States Department of Energy |
| United States Department of State | Segretario di Stato degli Stati Uniti |
| United States dollar | Dollaro statunitense |
| United States Federal Executive Departments | Istituzioni federali degli Stati Uniti |
| United States Geological Survey | United States Geological Survey |
| United States Grand Prix | Gran Premio degli Stati Uniti |
| United States Grand Prix East | Gran Premio degli Stati Uniti-Est |
| United States Grand Prix West | Gran Premio degli Stati Uniti-Ovest |
| United States House of Representatives | Camera dei Rappresentanti degli Stati Uniti |
| United States House Select Committee on Assassinations | HSCA |
| United States Intelligence Community | United States Intelligence Community |
| United States Marine Corps | United States Marine Corps |
| United States Military Academy | Accademia Militare degli Stati Uniti |
| United States military chocolate | Cioccolato delle forze armate statunitensi |
| United States motorcycle Grand Prix | Gran Premio motociclistico degli USA |
| United States national basketball team | Dream Team |
| United States National Library of Medicine | National Library of Medicine |
| United States national rugby union team | Nazionale di rugby XV degli Stati Uniti |
| United States Navy | United States Navy |
| United States Navy Fighter Weapons School | United States Navy Fighter Weapons School |
| United States Navy SEALs | Navy SEALs |
| United States of America | Stati Uniti |
| United States presidential election | Elezioni presidenziali degli Stati Uniti |
| United States S class submarine | Classe S |
| United States Secret Service | United States Secret Service |
| United States Secretary of Defense | United States Department of Defense |
| United States Secretary of State | Segretario di Stato degli Stati Uniti |
| United States Securities and Exchange Commission | Securities and Exchange Commission |
| United States Senate | Senato degli Stati Uniti |
| United States Soccer Federation | Federazione calcistica degli Stati Uniti |
| United States Virgin Islands | Isole Vergini americane |
| United States Virgin Islands national soccer team | Nazionale di calcio delle Isole Vergini Americane |
| United States-Mexico barrier | Barriera di separazione tra Stati Uniti e Messico |
| United Suvadive Republic | Isole Suvadive |
| United Technologies Corporation | United Technologies Corporation |
| United World Chart | United World Chart |
| unites | unito |
| uniting | unione |
| unitive | unitivo |
| unity | intero |
| Unity Module | Unity Module |
| Unity Party | Unity Party |
| UNIVAC LARC | LARC |
| univalent | monovalente |
| univerbation | univerbazione |
| Univers | Univers |
| Univers Zero | Univers Zero |
| universal | universale |
| Universal abit | ABIT |
| Universal asynchronous receiver transmitter | UART |
| Universal binary | Universal binary |
| Universal Carrier | Universal Carrier |
| Universal Church of the Kingdom of God | Chiesa Universale del Regno di Dio |
| Universal Coordinated Time | Tempo coordinato universale |
| Universal Decimal Classification | Classificazione Decimale Universale |
| Universal Description Discovery and Integration | Universal Description Discovery and Integration |
| Universal Disk Format | Universal Disk Format |
| Universal franchise | Suffragio universale |
| Universal grammar | Grammatica universale |
| Universal Great Brotherhood | Grande Fraternità Universale |
| Universal Media Disc | Universal Media Disc |
| Universal Mobile Telecommunications System | Universal Mobile Telecommunications System |
| Universal Music Group | Universal Music Group |
| Universal Networking Language | Lingua pivot |
| Universal Plug and Play | Universal Plug and Play |
| Universal Postal Union | Unione Postale Universale |
| Universal quantification | Quantificatore universale |
| Universal reconciliation | Universalismo |
| Universal Serial Bus | Universal Serial Bus |
| Universal shaft | Giunto cardanico |
| Universal Studios | Universal Studios |
| Universal Studios Theme Parks | Universal Studios |
| Universal Subscriber Identity Module | Universal Subscriber Identity Module |
| Universal Time | Tempo universale |
| Universal translator | Traduttore universale |
| Universal Transverse Mercator coordinate system | Proiezione Universale Trasversa di Mercatore |
| Universal Zulu Nation | Zulu Nation |
| Universalglot | Universalglot |
| universality | universalità |
| universalize | generalizzare |
| universally | universalmente |
| universally known | notorio |
| universe | mondo |
| Universiade | universiade |
