| Reifpilz | gipsy mushroom |
| Heizpilz | heating mantle mushroom heater patio heater |
| reiflich | mature |
| Giftpilz | toadstool |
| Hefepilz | yeast |
| Maipilz | St. George's mushroom |
| Steinpilz | porcini cep |
| Freistil | freestyle |
| Reibahle | reamer |
| Reifbelag | bloom |
| Reife- | maturational |
| Reifrock | hoop skirt |
| Reifung | gestation |
| Reinhold | Reynold |
| Reisfeld | paddy |
| Reisfink | Java sparrow |
| Reismilch | rice milk |
| Reitplatz | manège |
| Treibholz | driftwood |
| reinlich | cleanly clean |