| thermonuklear | thermonuclear |
| homonuklear | homonuclear |
| Thermometer | thermometer |
| Thermosphäre | thermosphere |
| Thermostat | thermostat |
| Thermalbad | hot springs |
| Thermoskanne | thermos |
| thermophil | thermophile thermophilic |
| Terminalhaar | terminal hair |
| Harmonielehre | theory of harmony |
| Harmonika | harmonica |
| antinuklear | antinuclear |
| nuklear | nuclear |
| Thekla | Thecla |
| Themenpark | theme park |
| Theogonie | theogony |
| Thermidor | Thermidor |
| Thermochemie | thermochemistry |
| Thermografie | thermography |
| Thermographie | thermography |