| Radmutter | lug nut |
| Aalmutter | viviparous blenny viviparous eelpout eelpout |
| Raufutter | roughage |
| Radmacher | wainwright |
| Radmantel | tyre |
| Nährmutter | foster mother |
| Urmutter | foremother |
| Hausmutter | large yellow underwing |
| Mutter | mother nut |
| Radierer | eraser |
| Radikaler | radical |
| Radfahrer | biker cyclist |
| Radiator | radiator |
| Radiometer | radiometer |
| Radkasten | wheel housing |
| Radlader | loader |
| Radlager | wheel bearing |
| Radler | cyclist shandy |
| Radsteg | bikeway |
| Udmurte | Udmurt |