| Transmission | transmission |
| Transmissionsgrad | transmittance |
| Transklusion | transclusion |
| Transfusion | transfusion |
| Transgression | transgression |
| Transition | transition |
| Transfektion | transfection |
| Transaktion | transaction |
| Transistor | transistor |
| Transkription | transcription |
| Translation | translation |
| Transnistrien | Transnistria |
| Transposition | transposition |
| Trans-Person | transgender |
| Transferrin | transferrin |
| Transitiv | transitive verb |
| transitiv | transitive |
| Transmann | trans man |
| Trappistin | Trappist |
| Weltraummission | space mission |