| Rotationsbrache | fallow |
| Rotationsachse | axis of rotation |
| Rotationskurve | rotation curve |
| Protosprache | proto-language |
| Sensationsmache | sensationalism |
| Retentionsrecht | lien |
| Erosionsfläche | scour |
| Tonsprache | tone language |
| Roma-Sprache | Romani |
| Altaisprache | Altaic language |
| Soldatensprache | army slang forces' slang military slang soldiers' slang |
| Rotation | rotation |
| Rotationsbewegung | rotary motion |
| Stationsarzt | ward physician |
| Stationsärztin | ward physician |
| Tatsache | fact |
| Delegationssprache | delegation language |
| Nationaltracht | national costume |
| Rationale | rationale |
| Funktionsgraph | graph |