| Reduplikation | reduplication |
| Duplikation | duplication |
| Replikation | replication |
| Explikation | explication |
| Reduktion | reduction |
| Webapplikation | web application |
| Applikation | application administration |
| Implikation | implication |
| Komplikation | complication |
| Supplikation | supplication |
| Publikation | publication |
| Medikation | medication |
| Reifikation | reification |
| Realisation | realization |
| Religation | religation |
| Regurgitation | regurgitation |
| Rekuperation | recuperation |
| reduplizieren | reduplicate |
| Redaktion | editing |
| Redhibition | redhibition |