4 letters
- fibs10
- fice10
- fico10
- fido8
- fids8
- fief10
- fife10
- figs9
- fila8
- file8
- fill9
- film11
- filo8
- fils8
- find9
- fine8
- fino8
- fins8
- fire7
- firm10
- firn8
- firs7
- fisc10
- fish9
- fist7
- fits7
- five11
- flab11
- flag10
- flak12
- flam11
- flan9
- flap11
- flat8
- flaw11
- flax15
- flay10
- flea8
- fled9
- flee8
- flew11
- flex15
- fley10
- flic11
- flip11
- flit8
- floc11
- floe8
- flog10
- flop11
- flow11
- flub12
- flue9
- flus9
- foal8
- foam10
- fobs10
- foci10
- foes7
- fogs9
- foil8
- foin8
- fold9
- folk12
- fond9
- fons8
- food8
- fool8
- fops10
- fora7
- forb10
- ford8
- fore7
- fork11
- form10
- fort7
- foss7
- foul9
- four8
- fowl11
- foys9
- frae7
- frag9
- frap10
- frat7
- fray9
- free7
- fret7
- frig9
- frit7
- friz16
- froe7
- frog9
- from10
- frow10
- fubs11
- fuds9
- fuel9
- furl9
- furs8
- fuse8
- gabs9
- gadi7
- gads7
- gaed7
- gaes6
- gala7
- gale7
- gals7
- gaol7
- garb9
- gars6
- gave10
- gear6
- geds7
- geld8
- gels7
- gibe9
- gibs9
- gids7
- gied7
- gies6
- gild8
- gird7
- girl7
- giro6
- give10
- glad8
- gled8
- glia7
- glib10
- glob10
- goad7
- goal7
- goas6
- gobs9
- gods7
- goer6
- goes6
- gold8
- golf10
- gore6
- grab9
- grad7
- grid7
- haaf9
- haar6
- hade7
- haed7
- haes6
- hail7
- hair6
- hale7
- half10
- halo7
- hard7
- hare6
- harl7
- have10
- head7
- heal7
- hear6
- heil7
- heir6
- held8
- helo7
- herb9
- herd7
- herl7
- hero6
- hers6
- hide7
- hied7
- hies6
- hila7
- hire6
- hive10
- hoar6
- hobs9
- hods7
- hoed7
- hoer6
- hoes6
- hold8
- hole7
- hols7
- hora6
- hose6
- hove10
- iamb10
- ibex14
- ibis7
- iced8
- ices7
- idea5
- idem8
- ides5
- idle6
- idly8
- idol6