| recherchieren | investigate research |
| Rechenschieber | slide rule |
| Recherche | enquiry investigation |
| depeschieren | telegraph |
| retuschieren | retouch |
| revanchieren | take one's revenge |
| Reservieren | reserve |
| reservieren | reserve |
| reiterieren | reiterate |
| referieren | refer |
| Rechenzeichen | operator |
| rechtschaffen | righteous |
| rechtschreiben | spell |
| mechanisieren | mechanize |
| Tschechien | Czechia Czech Republic |
| dechiffrieren | decipher decrypt |
| echauffieren | warm up |
| tschechern | binge |
| orchestrieren | orchestrate |
| therapieren | treat |