| toxic metal | metal tóxico |
| toxic shock syndrome | síndrome del shock tóxico |
| toxic substance | sustancias tóxicas |
| toxicity | toxicidad |
| Toxicodendron | Toxicodendron |
| Toxicodendron radicans | Toxicodendron radicans |
| toxicological | toxicológico |
| toxicologist | toxicólogo |
| toxicology | toxicología |
| toxicomania | toxicomanía |
| toxin | toxina |
| Toxine | Toxin |
| Toxocariasis | Toxocariasis |
| toxoplasmosis | toxoplasmosis |
| toy | trebejo |
| Toy block | Ladrillo |
| toy box | caja de juguetes |
| Toy Dolls | Toy Dolls |
| Toy Story | Toy Story |
| toy with | jugar con |
| Toya Kinomoto | Tōya Kinomoto |
| Toyama | Toyama |
| Toyama Prefecture | Prefectura de Toyama |
| toymaker | jugetero |
| Toyo Ito | Toyō Itō |
| Toyo Mitunobu | Toyo Mitunobu |
| toyon | tollón |
| Toyota | Toyota |
| Toyota Altezza | Alteza |
| Toyota Avensis | Toyota Avensis |
| Toyota Center | Toyota Center |
| Toyota Corolla | Toyota Corolla |
| Toyota Land Cruiser | Toyota Land Cruiser |
| Toyota Motor Corporation | Toyota |
| Toyota Production System | Sistema de producción Toyota |
| Toyota Stadium | Estadio Toyota |
| Toyota Vitz | Toyota Yaris |
| Toyotomi clan | Clan Toyotomi |
| Toyotomi Hideyoshi | Toyotomi Hideyoshi |
| toys | juguetes |
| Toys in the Attic | Toys In The Attic |
| Toše Proeski | Toše Proeski |
| TP | Trapani |
| TPz Fuchs | Vulpecula |
| TQM | Gestión total de calidad |
| TR | Terni |
| Trabecular meshwork | Red trabecular |
| Trabzon | Trebisonda |
| Trabzon Province | Provincia de Trabzon |
| Trabzonspor | Trabzonspor Kulübü |
| trace | huella |
| trace back to | remontarse a |
| trace element | microelemento |
| Trace fossil | Icnofósil |
| Trace-element | Elemento químico esencial |
| traceability | posibilidad de rastreo |
| Traced design | Calco semántico |
| tracer | diseñador |
| Traceroute | Traceroute |
| Tracey Adams | Tracey Adams |
| trachea | tráquea |
| tracheal | traqueal |
