| Regen | rain Regen |
| regen | move stir |
| Regent | ruler sovereign |
| Regentin | regent |
| Regentag | rainy day |
| Regeln | control |
| regeln | control manage regulate |
| Regenmoor | bogland |
| Regenrohr | drainpipe |
| Regentanz | rain dance |
| Regex | regular expression |
| Bregen | brain |
| Regel | rule regulation period |
| Regenfall | rainfall |
| Regenguss | downpour torrent |
| Regenwald | rain forest rainforest |
| Regenwurm | earthworm worm |
| Regenzeit | wet season rainy season |
| rege | lively |
| regnen | rain |