| Tetraktys | tetractys |
| Tetris | Tetris |
| Tetanus | tetanus |
| Tetraeder | tetrahedron |
| Tetragon | tetragon |
| Tetrameter | tetrameter |
| Tetrarch | tetrarch |
| beträgt | amount |
| Extrakt | essence extract abstract gist |
| Trakt | suite tract |
| Traktat | treatise tract treaty |
| Traktor | tractor |
| attraktiv | attractive |
| Herakles | Heracles |
| Refraktor | refracting telescope refractor |
| Terrakotta | terracotta |
| refraktär | refractory |
| Tetragramm | Tetragrammaton |
| Tetralogie | tetralogy |
| tetraedrisch | tetrahedral |