| Regensburg | Ratisbon Regensburg |
| Regensturm | rainstorm |
| Regenwurm | earthworm worm |
| Wagenburg | wagon fort |
| Flensburg | Flensburg |
| Engelsburg | Castel Sant'Angelo |
| Neuenburg | Neuchâtel |
| Regenmoor | bogland |
| Regenmoore | raised bog |
| Regenrohr | drainpipe |
| Regelbuch | rulebook |
| Regelung | closed-loop control regulation arrangement |
| Regenguss | downpour torrent |
| Regenschirm | umbrella brolly |
| Regentag | rainy day |
| Regisseur | director |
| regelbar | adjustable |
| Gegenstück | counterpart |
| Gegenüber | person opposite |
| gegenüber | opposite across |