| Radikal | radical |
| radikal | radical |
| Radikale | radical |
| Radikaler | radical |
| radial | radial radially |
| radikalisch | radical radically |
| Radikalinski | firebrand |
| prädial | praedial |
| Prädikat | predicate |
| Radikalismus | radicalism |
| Radikand | radicand |
| ridikül | ridiculous |
| Baikal | Baikal |
| apikal | apical |
| laikal | lay |
| Rada | rada |
| Radix | primitive |
| radio- | radio- |
| Radar | radar |
| Radau | racket |