4 letters
- firs7
- fist7
- fits7
- five11
- fixt14
- flab11
- flat8
- flea8
- fled9
- flit8
- flub12
- flue9
- fora7
- forb10
- ford8
- fore7
- fort7
- four8
- frae7
- frag9
- frap10
- frat7
- fray9
- free7
- fret7
- frig9
- frit7
- friz16
- froe7
- frug10
- fubs11
- fuci11
- fuds9
- fuel9
- fuji17
- fume11
- fund10
- furl9
- furs8
- fury10
- fuse8
- futz17
- fuze17
- gadi7
- gaed7
- gait6
- garb9
- gate6
- gaud8
- gaur7
- gear6
- geta6
- gibe9
- gied7
- gift9
- gird7
- girt6
- grab9
- grad7
- grat6
- grid7
- grit6
- grub10
- grue7
- guar7
- gude8
- guid8
- habu10
- hade7
- haed7
- haet6
- haft9
- hair6
- hard7
- hare6
- hart6
- hate6
- haut7
- head7
- hear6
- heat6
- heft9
- heir6
- herb9
- herd7
- hide7
- hied7
- hire6
- hued8
- hurt7
- iamb10
- ibex14
- iced8
- idea5
- idem8
- ides5
- idle6
- ikat8
- ilea5
- iota4
- ired5
- ires4
- irid5
- isba7
- item7
- izar13
- jade14
- jibe16
- juba17
- jube17
- jura14
- jute14
- kadi9
- kaif11
- kart8
- kbar11
- keir8
- kerb11
- kerf11
- kibe11
- kief11
- kier8
- kite8
- lade6
- laid6
- lair5
- lard6
- lari5
- late5
- lati5
- laud7
- lead6
- leaf8
- lear5
- left8
- leud7
- liar5
- lied6
- lief8
- lier5
- lieu6
- life8
- lift8
- lira5
- lire5
- lite5
- litu6
- lube9
- lude7
- lure6
- lute6
- mabe10
- made8
- maid8
- mair7
- mare7
- mart7
- mate7
- maud9
- maut8
- mead8
- meat7
- meta7
- mire7
- mite7
- mura8
- mure8
- murr8
- mute8
- nabe8
- naif8
- nard6
- near5
- neat5
- neif8
- nerd6
- nide6
- nite5
- nude7
- nurd7
- obia7
- obit7
- odea5
- orad5
- orra4
- padi8
- paid8
- pair7
- pard8
- pare7
- parr7
- part7
- pate7
- pear7
- peat7
- peri7
- pert7
- pfui11
- pied8
- pier7