| Filzhut | fedora |
| Filtrat | filtrate |
| Filzer | felt-tip |
| Filet | fillet netting |
| Filius | junior son |
| Filmblut | stage blood theatrical blood |
| Filz | felt miser |
| Filzlaus | crab louse pubic louse |
| filzen | frisk felt |
| Eilzug | express limited-stop train |
| Aluhut | tinfoil hat |
| File | file |
| Filetyp | filetype |
| Filine | maidservant |
| Filmautor | screenwriter |
| Filmer | filmmaker |
| filtern | fine filter |
| Filament | filament |
| Filiale | branch |
| Fillér | fillér |