| Fernrohr | telescope |
| Ofenrohr | stovepipe |
| Ferner | glacier |
| ferner | moreover additionally further furthermore in addition |
| Ferrobor | ferroboron |
| Fernost | Far East |
| Fernseher | television television set |
| Fernweh | itchy feet wanderlust |
| Harnröhre | urethra |
| Regenrohr | drainpipe |
| Leerrohr | conduit |
| Meerohr | abalone |
| Wellrohr | conduit |
| Fallrohr | downpipe downspout drainpipe |
| Sehrohr | periscope |
| Fern | long haul |
| fern | far |
| Fermion | fermion |
| Ferne | distance |
| Fernglas | binoculars field glasses |