| Redakteur | editor |
| Redakteurin | editor |
| Redaktion | editing |
| Akteur | actor |
| Reaktor | reactor |
| Reparateur | handyman |
| Redoute | redoubt |
| Chefredakteur | editor in chief editor-in-chief |
| Redeteil | part of speech |
| Redner | speaker orator lecturer |
| Reduktion | reduction |
| Edamer | Edam |
| Medailleur | medallist |
| Daker | Dacian |
| Reaktant | reactant |
| Einakter | one-act play |
| Fraktur | fracture blackletter script |
| Reaktanz | reactance |
| Reaktion | reaction |
| Refraktor | refracting telescope refractor |