| Thermoluminescence dating | Metoda termoluminescencyjna |
| thermometer | termometr |
| Thermopylae | Termopile |
| Thermopyles | Termopile |
| thermos | termos |
| Thermosetting plastic | Duromer |
| thermosphere | termosfera |
| thermostat | termostat |
| Theropoda | Teropody |
| Thersites | Tersytes |
| thesaurus | tezaurus |
| Thescelosaurus | Teskelozaur |
| Theses on Feuerbach | Tezy o Feuerbachu |
| Theseus | Tezeusz |
| thesis | teza |
| Thesmophoria | Tesmoforie |
| Thespis | Tespis |
| Thessalia | Tesalia |
| Thessalonica of Macedon | Tessalonika |
| Thessaloniki | Saloniki |
| Thessaloniki Prefecture | Saloniki |
| Thessaly | Tesalia |
| Thestral | Testral |
| Theta | Theta |
| Theta Centauri | Menkent |
| Theta Scorpii | Sargas |
| Thetis | Tetyda |
| Theudebald | Teudoald |
| Theuderic I | Teoderyk I |
| Theuderic IV | Teuderyk IV |
| Theudoald | Teudoald |
| they | one |
| They Came to Baghdad | Spotkanie w Bagdadzie |
| They Came to Bahgdad | Spotkanie w Bagdadzie |
| They Do It with Mirrors | Strzały w Stonygates |
| They Live | Oni żyją |
| They shall not pass | Nie przejdą |
| Thiago Motta | Thiago Motta |
| thiamin | tiamina |
| thiamine | tiamina |
| Thibet | Tybet |
| Thich Quang Duc | Thích Quảng Ðức |
| thick | gruby |
| thick as a brick | głupi jak but |
| Thick description | Gęsty opis |
| Thick piece of steak | Klinkier |
| thick-knee | kulon |
| thicket | gęstwina |
| thickness | miąższość |
| thief | złodziej |
| Thief of Time | Złodziej czasu |
| Thierhaupten | Thierhaupten |
| Thierrens | Thierrens |
| Thierry | Teodoryk |
| Thierry Henry | Thierry Henry |
| Thierry La Fronde | Thierry Śmiałek |
| Thiers | Thiers |
| Thiersheim | Thiersheim |
| Thierstein | Thierstein |
| Thietmar of Merseburg | Thietmar z Merseburga |
| thigh | udo |
| thighbone | kość udowa |
| thimble | naparstek |
