4 letters
- fido8
- file8
- filo8
- find9
- fine8
- fino8
- fire7
- firn8
- flan9
- flea8
- fled9
- flee8
- flew11
- flex15
- fley10
- floc11
- floe8
- flog10
- flop11
- flow11
- flub12
- flue9
- flus9
- flux16
- foal8
- foes7
- fohn10
- foil8
- foin8
- fold9
- folk12
- fond9
- fons8
- font8
- food8
- fool8
- fora7
- forb10
- ford8
- fore7
- fork11
- form10
- fort7
- foul9
- four8
- fowl11
- frae7
- free7
- fret7
- froe7
- frog9
- from10
- frow10
- frug10
- fuds9
- fuel9
- full10
- fume11
- fund10
- funk13
- funs9
- furl9
- furs8
- fury10
- fuse8
- fuze17
- geld8
- genu8
- gled8
- glen8
- glue8
- goer6
- gold8
- golf10
- gone7
- gore6
- grue7
- gude8
- gulf11
- hade7
- haed7
- haen7
- hale7
- half10
- halo7
- hand8
- hard7
- hare6
- harl7
- haul8
- head7
- heal7
- hear6
- heed7
- heel7
- heft9
- heil7
- heir6
- held8
- hell8
- helm10
- helo7
- help10
- hens7
- hent7
- herb9
- herd7
- here6
- herl7
- herm9
- hern7
- hero6
- hers6
- hewn10
- hide7
- hied7
- hind8
- hire6
- hoar6
- hods7
- hoed7
- hoer6
- hoes6
- hoke10
- hold8
- hole7
- holk11
- holm10
- holp10
- hols7
- holt7
- holy9
- home9
- hone7
- hong9
- honk11
- hons7
- hood7
- hoof9
- hope9
- hora6
- horn7
- hose6
- hour7
- hove10
- howe9
- howf12
- howl10
- hued8
- hues7
- huff13
- huge9
- hula8
- hulk12
- hull9
- hung10
- hunh10
- hunk12
- huns8
- hunt8
- hurl8
- hurt7
- idle6
- idol6
- info8
- inro5
- ired5
- iron5
- jehu16
- jeon14
- john16
- jole14
- judo15
- keno9
- kerf11
- kern9
- knur10
- koel9
- kohl11
- kore8
- kudo10
- kune10
- lade6
- land7
- lane6
- lard6
- laud7
- lead6
- leaf8
- lean6
- lear5
- lech10
- leer5
- left8
- lehr7
- leku10
- lend7
- leno6
- lens6
- lent6