| Transferrin | transferrin |
| Transfektion | transfection |
| Transferase | transferase |
| Transfer | hand-off |
| transferieren | transfer |
| Trans-Person | transgender |
| Transfrau | trans woman |
| Trägerin | host carrier |
| Träumerin | dreamer |
| transdermal | percutaneous |
| transfinit | transfinite |
| Trainerin | coach |
| Transfusion | transfusion |
| Transuran | transuranium element transuranic element |
| Transvestit | transvestite |
| Travertin | travertine |
| transalpin | transalpine |
| trassieren | draw a bill of exchange |
| Iranerin | Irani Iranian |
| Täuferin | Anabaptist |