| tuneless | non melodioso |
| tuner | sintonizzatore |
| tunes | esatto |
| tungsten | tungsteno |
| tungsten carbide | carburo di tungsteno |
| Tungusic languages | Lingue tunguse |
| Tunguska event | Tunguska |
| Tunguska River | Tunguska Pietrosa |
| tunic | giubba |
| Tunicate | Tunicata |
| Tunicle | Tunicella |
| tuning | votazione |
| tuning fork | corista |
| Tuning peg | Vertebra |
| Tuning-key | Accordatrice |
| Tuningen | Tuningen |
| Tunis | Tunisi |
| Tunis Governorate | Tunisi |
| Tunisair | Tunisair |
| Tunisia | Tunisia |
| Tunisia Campaign | Campagna di Tunisia |
| Tunisia national football team | Nazionale di calcio della Tunisia |
| Tunisian | tunisino |
| Tunisian crochet | Uncinetto tunisino |
| Tunisian dinar | Dinaro tunisino |
| Tunnbröd | Knäckebröd |
| tunnel | galleria |
| Tunnel boring machine | Tunnel Boring Machine |
| Tunneling protocol | Tunneling |
| tunnelling | scavo di una galleria |
| Tunnels and Trolls | Tunnels and trolls |
| tunny | tonno |
| Tuntenhausen | Tuntenhausen |
| Tunuyán | Tunuyán |
| Tunuyán Department | Tunuyán |
| Tuol Sleng Genocide Museum | Tuol Sleng Genocide Museum |
| Tuomas Holopainen | Tuomas Holopainen |
| Tuone Udaina | Tuone Udaina |
| Tupac Amaru District | Tupac Amaru |
| Tupac Huallpa | Tupac Huallpa |
| Tupac Inca Yupanqui | Túpac Yupanqui |
| Tupac Katari | Túpac Catari |
| Tupac Shakur | Tupac Shakur |
| Tupiniquim | Tupinikin |
| Tuple relational calculus | Tupla |
| Tupolev | Tupolev |
| Tur Abdin | Tur Abdin |
| Turaida Castle | Turaida |
| Turan | Turan |
| Turan Depression | Bassopiano turanico |
| Turandot | Turandot |
| Turanga Leela | Turanga Leela |
| Turanism | Turanismo |
| Turb | Turbe |
| turban | turbante |
| turbanned | inturbantato |
| Turbe | Turbe |
| Turbellaria | Turbellaria |
| Turbenthal | Turbenthal |
| turbid | confuso |
| turbidity | torbidità |
| Turbidity current | Corrente torbida |
| turbine | turbina |
| turbine-powered ship | turbonave |
| Turbinicarpus | Turbinicarpus pseudopectinatus |
| turbo | turbocompressore |
| Turbo code | Turbo codici |
| Turbo Outrun | Turbo Out Run |
