| Flugboot | seaplane |
| Flugroute | airway |
| Flugbahn | trajectory |
| Flugbild | flight silhouette |
| Flugblatt | flyer leaflet |
| Fährboot | ferryboat |
| U-Boot | sub |
| Faltboot | faltboat foldboat collapsible boat |
| Hausboot | houseboat |
| Flughahn | flying gurnard |
| Flughuhn | sandgrouse |
| Fluorit | fluorite |
| Flussgott | river god |
| flügge | fledged |
| Flucht | flight |
| Flug | flight |
| Flugangst | fear of flying |
| Flugente | Muscovy Duck |
| Flughund | flying fox |
| Fluglotse | air traffic controller |