| Wellrohr | conduit |
| Fallrohr | downpipe downspout drainpipe |
| hellrot | bright red |
| Metallrohr | metal pipe |
| Leerrohr | conduit |
| Meerohr | abalone |
| Fernrohr | telescope |
| Sehrohr | periscope |
| Well- | corrugated |
| wellen | undulate |
| wellend | undulating |
| wellig | billowy |
| Welle | wave shaft Mexican wave audience wave |
| Welli | budgie |
| Wellness | wellness |
| Weltmeer | ocean |
| Weltraum | space |
| welche | some ones what which |
| welcher | some ones which that who |
| welsch | Romance-speaking |