| Flachheit | flatness |
| Wachheit | awakeness |
| Laschheit | flaccidity |
| Falschheit | falsehood baseness falseness |
| Frechheit | brashness cheek impudence |
| Flachfeile | flat file |
| Flachse | tendon |
| Fläche | surface area |
| flachsen | joke kid wisecrack |
| lachhaft | laughable |
| Weichheit | softness |
| Gleichheit | equality |
| Faulheit | laziness sloth idleness |
| Klarheit | clearness |
| Lautheit | loudness |
| Flachland | lowland |
| Flachlegen | takedown |
| flachlegen | lay do |
| Flackern | flicker |
| flackern | flicker |