| Fachidiot | nerd |
| Halbidiot | halfwit |
| fastidiös | fastidious |
| fachlich | disciplinary |
| Facelift | automotive face-lift automotive facelift facelift rhytidectomy |
| Facharzt | specialist |
| Fachgebiet | discipline |
| Fachkraft | specialist professional skilled employee subject matter expert trained assistant |
| Fachmarkt | specialty retailer |
| Fachwort | technical term term |
| Flachheit | flatness |
| Rachitis | rachitis |
| lachsrot | salmon |
| Achroit | achroite |
| Machismo | machismo male chauvinist |
| Wachheit | awakeness |
| Chiliöl | chili oil |
| Dschigit | dzhigit |
| Falchion | falchion |
| Schilift | ski lift |