| Riesenalk | great auk |
| Riesenhai | basking shark |
| Riesenrad | big wheel ferris wheel Ferris wheel |
| rieseln | gush trickle |
| riesenhaft | gigantic |
| Riesengalago | thick-tailed bushbaby |
| Riesenkalmar | giant squid |
| Riesenmanta | manta ray |
| Riesentier | behemoth |
| Riesenwelle | rogue wave |
| Riesin | giant |
| Riechsalz | smelling salt |
| Riegel | bar bolt |
| Riemen | strap oar |
| Riese | giant |
| Riesenkrake | giant octopus |
| Riesenslalom | giant slalom |
| Riesentukan | toco toucan |
| Fiesel | pizzle |
| Kiesel- | flinty |