| flugs | quickly |
| Fluß | thread |
| Fluss | river flow fluency flux |
| Flug | flight |
| Flugscham | flight shame flying shame |
| Flugschau | airshow |
| Flugsteig | gate gatehouse |
| Fluke | fluke |
| Flush | flush |
| flügge | fledged |
| Fluch | curse malediction |
| Flugschein | pilot's licence air ticket flight ticket |
| Fluid | fluid |
| Fluor | fluorine fluor albus whites |
| Flur | corridor hallway hall farmland field |
| Fluse | fluff piece of fluff |
| Flut | flood-tide flood wave |
| Flügel | wing grand piano |
| Pflug | plough plow |
| Lüge | lie |