| Wasserpumpe | water pump |
| Wasserbombe | depth charge hedgehog water balloon water bomb |
| Wasserdampf | steam water vapor |
| Wassermühle | water mill |
| Wasserpieper | water pipit |
| Wasserpumpenzange | water pump pliers multi slip-joint gripping pliers multigrip pliers tongue-and-groove pliers |
| Wärmepumpe | heat pump |
| Wasserhuhn | coot |
| Wasserhund | water dog |
| Wasserhärte | water hardness |
| Wasserlinse | duckweed |
| Wassernixe | mermaid |
| Wasserpocken | water pox |
| Wasserralle | water rail |
| Wasserspinne | diving bell spider |
| Wassersäule | water column |
| Wasseramsel | dipper |
| Wasserbomber | water bomber waterbomber |
| Wasserburg | moated castle |
| Wasserbüffel | water buffalo |