| trilingual | trilingual |
| Trilingualismus | trilingualism |
| bilingual | bilingual |
| lingual | lingual |
| sublingual | sublingual |
| trigonal | trigonal |
| trilateral | trilateral |
| Triangel | triangle |
| Tribunal | tribunal forum |
| trivial | trivial |
| Anilingus | anilingus |
| multilingual | multilingual |
| Türklingel | doorbell |
| interlingual | interlingual |
| monolingual | monolingual |
| Trilinguismus | trilingualism |
| Trilog | trialogue |
| Triplizität | triplicity |
| Trivia | trivia |
| trinkbar | drinkable |