| tunnel aerodinamico | wind tunnel |
| Tunnel Boring Machine | Tunnel boring machine |
| tunnel carpale | carpal tunnel |
| Tunnel di Cu Chi | Củ Chi tunnels |
| Tunnel di Ezechia | Hezekiah Tunnel |
| Tunnel di lava | Lava tube |
| Tunnel di Lærdal | Lærdalstunnelen |
| Tunnel di Sarajevo | Sarajevo Tunnel |
| Tunnel Folgefonn | Folgefonntunnel |
| Tunnel Gudvanga | Gudvanga Tunnel |
| Tunnel Hsuehshan | Hsuehshan tunnel |
| tunnel temporale | time tunnel |
| Tunnel Zhongnanshan | Zhongnanshan Tunnel |
| Tunneling | Tunnel |
| Tunnels and trolls | Tunnels and Trolls |
| Tuntenhausen | Tuntenhausen |
| Tunuyán | Tunuyán |
| tuo | yours |
| tuo pari | your equals |
| Tuo per sempre | College |
| tuoi | thine |
| Tuol Sleng Genocide Museum | Tuol Sleng Genocide Museum |
| Tuomas Holopainen | Tuomas Holopainen |
| tuonare | boom |
| Tuonare contro | Storm at |
| tuonare e lampeggiare | be thundering and lightning |
| Tuone Udaina | Tuone Udaina |
| tuono | thunder |
| Tuono blu | Blue Thunder |
| tuorlo | egg yolk |
| Tupac Amaru | Túpac Amaru |
| Tupac Huallpa | Tupac Huallpa |
| Tupac Shakur | Tupac Shakur |
| Tupaia | Treeshrew |
| Tupaiidae | Treeshrew |
| Tupinikin | Tupiniquim |
| Tupolev | Tupolev |
| Tupou V | George Tupou V |
| tupè | toupee |
| Tur Abdin | Tur Abdin |
| tura | caisson |
| turacciolo | plug |
| Turaida | Turaida Castle |
| Turan | Turan |
| Turandot | Turandot |
| Turanga Leela | Turanga Leela |
| Turanismo | Turanism |
| turare | stop up |
| turba | concourse |
| turbamento | frustration |
| turbante | turban |
| turbare | upset |
| turbare l'equilibrio di | unbalance |
| Turbativa | Interference |
| turbato | upset |
| Turbe | Turbe |
| Turbellaria | Turbellaria |
| Turbenthal | Turbenthal |
| turbina | turbine |
| Turbina a vapore | Turbine |
| Turbina Francis | Francis turbine |
| Turbina Kaplan | Kaplan turbine |
| Turbina Pelton | Pelton wheel |
| turbinare | whirl |
| turbine | whirl |
