| redaktionell | editorial |
| Redaktion | editing |
| rationell | economic |
| Reduktion | reduction |
| Reaktionär | reactionary |
| reaktionär | reactionary |
| Reaktion | reaction |
| funktionell | functional |
| irrationell | irrational |
| relational | relational |
| sensationell | sensational |
| traditionell | traditional |
| Redakteur | editor |
| Reaktionärin | reactionary |
| Reaktionszeit | reaction time response time |
| Deduktion | deduction |
| Rektion | case government government |
| Resektion | resection |
| Seduktion | seduction |
| Rationale | rationale |