| Gastredner | guest lecturer guest speaker invited lecturer invited speaker outside speaker |
| Gastrednerin | guest speaker |
| Festredner | celebrant |
| Gastgeber | host |
| Streuner | stray |
| Gastronom | restaurateur |
| Gasometer | gasholder gasometer |
| Gastarbeiter | foreign worker guest worker migrant worker |
| gastieren | guest |
| Kastrierer | castrator |
| kastrierter | wether |
| astrein | cool |
| Streuer | caster |
| Streamer | streamer |
| Streber | striver streber |
| Strecker | extensor |
| gestreng | rigorous strict stringent stern |
| streunen | stray |
| Abtreiber | abortionist |
| Trenner | commercial bumper |