| RegExp | regular expression |
| Regex | regular expression |
| Regeln | control |
| regeln | control manage regulate |
| Regel | rule regulation period |
| Regen | rain Regen |
| regen | move stir |
| Regent | ruler sovereign |
| rege | lively |
| reglos | motionless |
| Bregen | brain |
| Bregenz | Bregenz |
| Regal | shelf rack seigniorage regal |
| Reggae | reggae |
| Regie | direction |
| Regime | regime |
| Regina | Regana Regena Regina |
| Region | region area |
| Regler | controller |
| Regress | regress |