| Flachmann | hip flask pocket flask |
| Fachmann | specialist expert |
| Flachland | lowland |
| Wachmann | watchman |
| Flachwagen | flatcar |
| flachmachen | flatten |
| Flachdach | flat roof |
| Flachmoor | fen swamp |
| flachsen | joke kid wisecrack |
| Froschmann | frogman |
| Milchmann | dairyman milkman |
| Landmann | peasant |
| Blaumann | overalls |
| Franzmann | Frenchie Frenchy |
| Fährmann | ferryman |
| Flachheit | flatness |
| Flachlegen | takedown |
| flachlegen | lay do |
| Flackern | flicker |
| flackern | flicker |