| Rennrad | racer |
| Einrad | unicycle |
| Lenkrad | steering wheel |
| Rennbob | bobsleigh |
| Renner | blockbuster |
| Rennmaus | gerbil |
| Renegat | apostate renegade |
| Rennbahn | racetrack |
| Rennen | race |
| rennen | run race sprint |
| Trennwand | dividing wall |
| brennbar | combustible flammable |
| brennend | burning fervent passionate urgent |
| renal | renal |
| trennbar | separable |
| Henna | henna |
| Pennal | pen case |
| Spinnrad | spinning wheel |
| Konrad | Conrad |
| Reinraum | clean room cleanroom |