| Stromkreis | electric circuit electrical circuit |
| Stadtkreis | county |
| Strohwein | straw wine |
| Stromnetz | grid |
| stromern | wander |
| Strickerei | knitting knitwear factory |
| Stromboli | Stromboli |
| Strommix | electricity mix |
| straffrei | exempt from punishment |
| strömen | stream |
| Trockeneis | dry ice |
| Trostpreis | consolation prize |
| Umkreis | surroundings circumcircle |
| Senkreis | cutting |
| Großkreis | great circle |
| Kornkreis | crop circle |
| Sperrkreis | wave trap |
| Tierkreis | zodiac |
| Pfropfreis | graft |
| Streberin | wonk |