| Wasserratte | water vole |
| Wasserglätte | aquaplaning |
| Wasserhärte | water hardness |
| Wasserralle | water rail |
| Wasserrakete | water rocket |
| Wanderratte | brown rat Norway Rat |
| Wassersäule | water column |
| Wasserbett | waterbed |
| Wasserfarbe | watercolour watercolor |
| Wasserkraft | water power |
| Wasserrad | waterwheel |
| Wasserwaage | spirit level level |
| Wasserbad | bain-marie |
| Wasserbär | water bear |
| Wassergas | water gas |
| Wasserkanone | water cannon |
| Wasserkresse | watercress |
| Wasserlinse | duckweed |
| Wassernixe | mermaid |
| Wasserreis | northern wild rice |