4 letters
- etna5
- etui5
- euro5
- evil9
- exit11
- exon12
- feck14
- felt8
- fern8
- fice10
- fico10
- file8
- filo8
- fine8
- fink12
- fino8
- fire7
- firn8
- flic11
- flit8
- floc11
- floe8
- foci10
- foil8
- foin8
- folk12
- font8
- fore7
- fork11
- fort7
- fret7
- frit7
- froe7
- geck13
- gelt7
- gent7
- gien7
- gilt7
- gink11
- girl7
- girn7
- giro6
- girt6
- glen8
- goer6
- gone7
- gore6
- grin7
- grit6
- grot6
- heck13
- heil7
- heir6
- helo7
- hent7
- herl7
- hern7
- hero6
- hick13
- hike10
- hilt7
- hint7
- hire6
- hock13
- hoer6
- hoke10
- hole7
- holk11
- holt7
- hone7
- honk11
- horn7
- iced8
- ices7
- icky13
- icon8
- idle6
- idol6
- ikat8
- ikon9
- ilea5
- ilex12
- ilka9
- ilks9
- inch10
- info8
- inks9
- inky11
- inly8
- inro5
- inti5
- into5
- ions5
- iota4
- ired5
- ires4
- irks8
- iron5
- isle5
- itch9
- item7
- jeon14
- jerk17
- jilt14
- jink18
- jock20
- join14
- joke17
- jole14
- jolt14
- kail9
- kain9
- kale9
- kane9
- kaon9
- karn9
- kart8
- keck15
- keel9
- keen9
- keet8
- keir8
- kelp12
- keno9
- kens9
- kent9
- kepi11
- kept11
- kerb11
- kerf11
- kern9
- keto8
- khet10
- kibe11
- kick15
- kief11
- kier8
- kike12
- kill10
- kiln10
- kilo9
- kilt9
- kina9
- kind10
- kine9
- king11
- kink13
- kino9
- kins9
- kirk12
- kirn9
- kirs8
- kist8
- kite8
- kith10
- kits8
- knar9
- knee9
- knew12
- knit9
- knob12
- knop12
- knot9
- know12
- knur10
- koan9
- koel9
- kohl11
- kois8
- kola9
- kolo9
- konk13
- kore8
- kors8
- koto8
- kris8
- kune10
- kyte10
- lace8
- lack12
- laic8
- lain6
- lair5
- lake9
- lane6
- lank10
- lari5
- lark9
- late5
- lati5
- leak9
- lean6
- lear5
- lech10
- leek9
- leer5
- leet5
- left8
- lehr7
- leis5