4 letters
- fano8
- fans8
- fard8
- fare7
- farl8
- farm10
- faro7
- fart7
- fash9
- faun9
- fawn11
- fear7
- fern8
- fiar7
- fiat7
- fice10
- fico10
- fido8
- fief10
- fife10
- fila8
- film11
- filo8
- find9
- fine8
- fink12
- fino8
- fins8
- fire7
- firm10
- firn8
- firs7
- fisc10
- fish9
- flam11
- flan9
- flic11
- floc11
- foal8
- foam10
- foci10
- fohn10
- foil8
- foin8
- fond9
- fons8
- font8
- fora7
- forb10
- ford8
- fore7
- fork11
- form10
- fort7
- four8
- frae7
- frag9
- frap10
- frat7
- fray9
- frig9
- frit7
- friz16
- froe7
- frog9
- from10
- frow10
- fuci11
- gaff12
- gain7
- girn7
- giro6
- gnar7
- gram9
- gran7
- grim9
- grin7
- haaf9
- haar6
- hack13
- haem9
- haen7
- haft9
- haik10
- hail7
- hair6
- haji15
- half10
- halm10
- halo7
- hame9
- hams9
- hand8
- hang9
- hank11
- hant7
- hard7
- hare6
- hark10
- harl7
- harm9
- harp9
- hart6
- hear6
- heir6
- herm9
- hern7
- hero6
- hick13
- hila7
- hind8
- hins7
- hint7
- hire6
- hisn7
- hoar6
- hoax13
- hock13
- hoer6
- holm10
- home9
- homo9
- homy11
- hone7
- hong9
- honk11
- hons7
- hoof9
- hora6
- horn7
- hour7
- howf12
- hoya8
- huff13
- huic10
- hwan10
- hymn12
- iamb10
- ichs9
- icon8
- iffy12
- ikon9
- imam10
- inch10
- info8
- inia5
- inro5
- into5
- ions5
- iota4
- iron5
- itch9
- izar13
- jiao13
- jiff19
- john16
- join14
- kaif11
- kain9
- kami11
- kaon9
- karn9
- khaf13
- khan11
- kina9
- kino9
- kirn9
- knar9
- koan9
- laic8
- lain6
- lair5
- lari5
- liar5
- lich10
- lima8
- limn9
- limo8
- lino6
- lion6
- lira5
- loaf8
- loam8
- loan6
- loca8
- loch10
- loci8
- loin6
- lorn6
- maar7
- mace10
- mach12
- mack14
- macs10
- magi9
- maid8
- mail8
- maim10
- main8
- mair7