| tetragonal | tetragonal |
| Tetragon | tetragon |
| hexagonal | hexagonal |
| trigonal | trigonal |
| Tetragramm | Tetragrammaton |
| Tetralogie | tetralogy |
| Betragen | behavior |
| betragen | amount come behave |
| getragen | worn |
| Estragon | tarragon dragon's-wort |
| agonal | agonistic agonal |
| diagonal | diagonal |
| epigonal | epigon |
| orthogonal | orthogonal |
| Personal | personnel staff human resources |
| Ethanal | ethanal |
| Terminal | terminal#Substantiv |
| terminal | terminal |
| Tetrabromid | tetrabromide |
| Tetanus | tetanus |