| Tetrachlormethan | carbon tetrachloride |
| Tetrafluormethan | carbon tetrafluoride |
| Tetrabrommethan | carbon tetrabromide |
| Tetraiodmethan | carbon tetraiodide |
| Tetrahydrofuran | tetrahydrofuran |
| terraformen | terraform |
| Tetragrammaton | Tetragrammaton |
| Tetralogie | tetralogy |
| Tetrameter | tetrameter |
| betrachtbar | viewable |
| Betrachterin | observer |
| betrachten | observe look at gaze at regard consider |
| Testrahmen | test harness |
| Transformation | transformation |
| Sprachvarietät | language variety |
| Tachometer | speedometer |
| geruchlos machen | deodorize |
| detachieren | detach remove |
| Perchlorat | perchlorate |
| verschlimmern | worsen aggravate |