| pyramidales System | pyramidal tract |
| formales System | formal system |
| Pyramidentexte | Pyramid Texts |
| Präfinales Rasseln | death rattle |
| Periodensystem | periodic table |
| Pyramidenstumpf | frustum |
| Pyramidologe | pyramidologist |
| Pyramidologie | pyramidology |
| Dateisystem | file system |
| Dreikammersystem | tricameralism |
| Kristallsystem | crystal system |
| Sedezimalsystem | hexadecimal |
| Vigesimalsystem | vigesimal |
| Abgassystem | exhaust gas system exhaust system |
| Aufladesystem | charging system |
| Dezimalsystem | decimal system |
| Inertialsystem | inertial reference frame |
| Koordinatensystem | coordinate system |
| Planetensystem | planetary system |
| Zahlensystem | number system |