| Esperanto | Deutsch | |
| sontubo | Sprachrohr | ✘ |
| ↳ | Lautsprecher — Sprachrohr | ✘ |
| urintubo | [Anatomie] Harnröhre | ✘ |
| neontubo | [Elektr.] Neonröhre | ✘ |
| orgentubo | Pfeife — Orgelpfeife | ✘ |
| ↳ | Orgelpfeife | ✘ |
| kamentubo | Schornstein | ✘ |
| ↳ | Schlot | ✘ |
| ↳ | Rauchfang | ✘ |
| ↳ | Kamin — Schornstein | ✘ |
| ↳ | Esse | ✘ |
| ĝartentubo | Gartenschlauch | ✘ |
| kamentubopurigisto | Kaminfeger | ✘ |