| Flare | solar flare stellar flare lens flare |
| Flame | Fleming flame |
| Clare | Clare |
| FlaRak | SAM |
| Flag | flag |
| Flair | flair bill |
| Fladen | naan bread nan bread |
| Flagge | flag ensign colours standard colors |
| Flak | flak |
| Flamme | flame |
| Flanke | flank side edge cross |
| Flat | flat |
| Flaum | fluff |
| Flause | fabrication |
| Flaute | calm lull slack period slackness |
| Fläche | surface area |
| flach | flat shallow |
| flau | weak |
| fläzen | flop |
| Klara | Clara |