| Subsystem | subsystem |
| Soundsystem | sound system |
| Typsystem | type system |
| Exosystem | exosystem |
| IT-System | IT system |
| Schulsystem | school system |
| System | system structure |
| Tonsystem | pitch space |
| Ökosystem | ecosystem |
| Substitut | surrogate |
| Subsidium | subsidy |
| Dubstep | dubstep |
| Wahlsystem | voting system |
| Immunsystem | immune system |
| Leitsystem | distributed control system |
| Sternsystem | star system |
| müsste | should |
| Südküste | south coast southern coast |
| Südosten | southeast south-east |
| Südwesten | southwest south-west |