| rege | lively |
| Regex | regular expression |
| Regel | rule regulation period |
| Regen | rain Regen |
| regen | move stir |
| RegExp | regular expression |
| Regeln | control |
| regeln | control manage regulate |
| Regent | ruler sovereign |
| Regentin | regent |
| regellos | licentious |
| Regelung | closed-loop control regulation arrangement |
| Regentag | rainy day |
| Regie | direction |
| regelbar | adjustable |
| Riege | group team |
| Regenmoor | bogland |
| Regenrohr | drainpipe |
| Regentanz | rain dance |
| Bregen | brain |