| Flachlegen | takedown |
| flachlegen | lay do |
| Flachwagen | flatcar |
| brachlegen | fallow |
| flachsen | joke kid wisecrack |
| nachlesen | glean |
| lahmlegen | paralyze |
| Flachheit | flatness |
| Flachland | lowland |
| Flackern | flicker |
| flackern | flicker |
| flachmachen | flatten |
| Flachfeile | flat file |
| Flachländer | lowlander |
| Flachmann | hip flask pocket flask |
| Flachse | tendon |
| Fläche | surface area |
| flambieren | flambé flambe |
| flanieren | stroll |
| flankieren | flank |