| thwack | pancada |
| thwart | impedir |
| thwarting | impedimento |
| THX | THX |
| thy | teu |
| thy (archaic)our dye | teuogentil |
| Thyborøn-Harboøre | Thyborøn-Harboøre |
| Thyestes | Tiestes |
| Thyholm municipality | Thyholm |
| Thylacine | Tigre da Tasmânia |
| Thylacinidae | Tigre da Tasmânia |
| Thylacoleo | Thylacoleonidae |
| Thylacoleonidae | Leão-marsupial |
| Thylacosmilus | Thylacosmilus |
| thyme | tomilho |
| Thymelaeaceae | Thymelaeaceae |
| Thymine | Timina |
| Thymol blue | Azul de timol |
| thymus | timo |
| Thyni | Tínios |
| Thyolo District | Thyolo |
| Thyone | Tione |
| Thyra | Thyra |
| Thyreophora | Thyreophora |
| Thyrididae | Thyrididae |
| Thyrnau | Thyrnau |
| Thyrohyoid muscle | Músculo tireo-hióideo |
| thyroid | tiróide |
| Thyroid cancer | Tumor da tiróide |
| thyroid gland | tiróide |
| thyrotoxicosis | tirotoxicose |
| Thysanura | Thysanura |
| ThyssenKrupp | ThyssenKrupp |
| Théo Lefèvre | Théodore Lefèvre |
| Théoden | Théoden |
| Théodore Chassériau | Théodore Chassériau |
| Théodore de Banville | Théodore de Banville |
| Théodore Géricault | Théodore Géricault |
| Théodore Rousseau | Théodore Rousseau |
| Théodore Steeg | Théodore Steeg |
| Théophile Gautier | Théophile Gautier |
| Théophraste Renaudot | Théophraste Renaudot |
| Thérèse de Lisieux | Teresa de Lisieux |
| Thônex | Thônex |
| ti | si |
| TI Circuit | TI Circuit |
| Tia Carrere | Tia Carrere |
| Tia Maria | Tia Maria |
| Tiago Calvano | Tiago Coelho Branco Calvano |
| Tiago Mendes | Tiago Mendes |
| Tiago Monteiro | Tiago Monteiro |
| Tiamat | Tiamat |
| Tian Shan | Tian-Shan |
| Tiananmen Square | Praça da Paz Celestial |
| Tianjin | Tianjin |
| Tianjin Olympic Centre Stadium | Tianjin Olympics Center Stadium |
| Tianjin Radio and Television Tower | Tianjin Radio and Television Tower |
| tiara | tiara |
| Tiaret | Tiaret |
| Tiaret Province | Tiaret |
| Tiber | Rio Tibre |
| Tiber Island | Ilha Tiberina |
| Tiberand | Tibreentil |
| Tiberias | Tiberíades |
| Tiberios III | Tibério III |
| Tiberius | Tibério |
| Tiberius Claudius Narcissus | Narciso |
| Tiberius Gracchus | Tibério Graco |
| Tiberius Gracchus Major | Tibério Graco |
| Tiberius I | Tibério |
| Tiberius II Constantine | Tibério II Constantino |
| Tiberius Nero | Tibério |
| Tiberius Sempronius Gracchus | Tibério Graco |
| Tibesti Mountains | Vulcão Tibesti |
| Tibet | Tibete |
| Tibet Autonomous Region | Tibete |
| Tibetan | Tibetano |
| Tibetan antelope | Chiru |
| Tibetan art | Arte do Tibete |
| Tibetan Buddhism | Budismo tibetano |
| Tibetan Dwarf Hamster | Cricetulus alticola |
| Tibetan language | Língua tibetana |
| Tibetan Mastiff | mastim tibetano |
| Tibetan Plateau | Planalto do Tibete |
| Tibetan script | Língua tibetana |
| Tibetian Dwarf Hamster | Cricetulus alticola |
| tibia | tíbia |
| tic | cacoete |
| tic-tac-toe | jogo do galo |
| Ticapampa District | Ticapampa |
| Ticino | Tessino |
| Ticino River | Rio Tessino |
| tick | trabalhar |
| tick-tack-toe | jogo-da-velha |
| ticket | reservar |
| ticket collector | cobrador |
| ticket inspector | cobrador |
| ticket office | bilheteria |
| ticket-window | bilheteria |
| ticketro (Colocasia esculenta) | ingressos |
| ticking | tique-taque |
| tickle | divertir |
| tickling charioteer | cócegas |
| ticklish | difícil |
| tickryme | carrapatoto |
| Ticlopidine | Ticlopidina |
| Tico Torres | Tico Torres |
| Ticodendraceae | Ticodendron incognitum |
| Ticodendron | Ticodendron incognitum |
| Ticuna language | Língua ticuna |
| tidal | de maré |
| Tidal power | Energia maremotriz |
| tidal power station | centrais maremotrizes |
| Tidal swamp | Manguezal |
| tidal water | água das marés |
| tidal wave | onda gigantesca |
