| Strahlrohr | water cannon |
| Strahler | radiator |
| Standrohr | stanchion |
| Sprachrohr | megaphone speaking tube loud hailer mouthpiece organ |
| Strahl | ray beam jet |
| Strahlregler | aerator |
| Strahlung | radiation |
| strahlen | radiate |
| strahlend | beaming radiant radioactive bright glorious refulgent vivid |
| Stahldraht | steel wire |
| Fallrohr | downpipe downspout drainpipe |
| Metallrohr | metal pipe |
| Saugrohr | intake manifold |
| Trinkrohr | drinking straw |
| Sehrohr | periscope |
| Steigrohr | ascending pipe |
| Strafstoß | penalty kick |
| Strahlfäule | thrush |
| Straklatte | spline |
| Strandfloh | sand flea |