| trigonal | trigonal |
| Tribunal | tribunal forum |
| Original | original |
| original | original |
| epigonal | epigon |
| Trikont | Third World |
| Trionfi | major arcana |
| Triton | Triton |
| Trial | trial |
| Triol | triol |
| Tritonus | tritone |
| tribal | tribal |
| trinär | trinary |
| trivial | trivial |
| originär | original |
| Tigon | tiglon tigon |
| Trogone | trogon |
| agonal | agonistic agonal |
| diagonal | diagonal |
| tetragonal | tetragonal |