| Rezeptor | receptor |
| Rezept | recipe prescription |
| Rezeption | reception reception desk perception |
| rezent | recent |
| rezeptfrei | over-the-counter non-prescription |
| reziprok | reciprocal |
| Gezeter | clamor |
| Zepter | scepter sceptre |
| Zepto- | zepto- |
| Elektor | elector |
| Reflektor | reflector |
| Detektor | detector receiver |
| Gegentor | goal against |
| Reaktor | reactor |
| Rektor | rector principal |
| Selektor | selector |
| Rezension | recension review |
| Rezession | recession |
| rezessiv | recessive |
| Gezeiten | tide |