4 letters
- firm10
- firn8
- firs7
- fisc10
- fish9
- fist7
- fits7
- five11
- fled9
- fley10
- floe8
- fobs10
- foci10
- foes7
- fogs9
- fogy11
- fohn10
- foil8
- foin8
- fold9
- fond9
- fons8
- font8
- food8
- fops10
- fora7
- forb10
- ford8
- fore7
- fork11
- form10
- fort7
- foss7
- four8
- foxy16
- foys9
- fozy18
- frae7
- fray9
- free7
- fret7
- frig9
- frit7
- friz16
- froe7
- frog9
- from10
- frow10
- fubs11
- fuds9
- fund10
- funs9
- furs8
- fury10
- fuse8
- fyce12
- fyke13
- geds7
- gens7
- gibe9
- gibs9
- gids7
- gied7
- gien7
- gies6
- gins7
- gird7
- girn7
- giro6
- gobs9
- goby11
- gods7
- goer6
- goes6
- gone7
- gore6
- gory8
- goys8
- grey8
- grid7
- grin7
- gybe11
- gyre8
- gyri8
- gyro8
- heir6
- hens7
- herb9
- herd7
- hern7
- hero6
- hers6
- hide7
- hied7
- hies6
- hind8
- hins7
- hire6
- hisn7
- hobs9
- hods7
- hoed7
- hoer6
- hoes6
- hone7
- hons7
- horn7
- hose6
- hoys8
- ibex14
- ibis7
- iced8
- ices7
- icon8
- idea5
- idem8
- ides5
- idle6
- idly8
- idol6
- idyl8
- iffy12
- ikon9
- inby10
- info8
- inks9
- inky11
- inly8
- inns6
- inro5
- into5
- ions5
- ired5
- ires4
- irid5
- iris4
- irks8
- iron5
- isba7
- isle5
- jeon14
- jibe16
- jibs16
- jins14
- jobs16
- joes13
- joey15
- join14
- joys15
- kefs11
- keir8
- keno9
- kens9
- kerb11
- kerf11
- kern9
- keys10
- kibe11
- kids9
- kief11
- kier8
- kifs11
- kind10
- kine9
- kino9
- kins9
- kirn9
- kirs8
- knob12
- kobs11
- kois8
- kore8
- kors8
- kris8
- leis5
- lend7
- leno6
- lens6
- leys7
- libs8
- lido6
- lids6
- lied6
- lief8
- lien6
- lier5
- lies5
- life8
- line6
- lino6
- lins6
- liny8
- lion6
- lire5
- lobe8
- lobs8
- lode6
- loin6
- lone6
- lord6