| Agroökosystem | agroecosystem agrosystem |
| Agroforstsystem | agroforestry system |
| Ökosystem | ecosystem |
| Größte | be-all and end-all |
| Exosystem | exosystem |
| Atmungssystem | respiratory system |
| Notensystem | stave |
| Soundsystem | sound system |
| Abgassystem | exhaust gas system exhaust system |
| Aufladesystem | charging system |
| K.-o.-System | knockout system |
| Larsen-System | Larsen's Opening Queen's Fianchetto Opening |
| Nervensystem | nervous system |
| Periodensystem | periodic table |
| Sprachsystem | language system |
| Tonsystem | pitch space |
| Währungssystem | currency system |
| Agrarökonomie | agronomy |
| agronomisch | agronomic |
| Agrobiologie | agrobiology |