4 letters
- fibs10
- file8
- film11
- fils8
- fire7
- firm10
- firs7
- flub12
- flue9
- flus9
- fubs11
- fuel9
- fume11
- furl9
- furs8
- fuse8
- gels7
- gems9
- germ9
- geum10
- gibe9
- gibs9
- gies6
- girl7
- glib10
- glim10
- glue8
- glum11
- grim9
- grub10
- grue7
- grum10
- guls8
- gums10
- heil7
- heir6
- helm10
- hems9
- herb9
- herl7
- herm9
- hers6
- hies6
- hire6
- hubs10
- hues7
- hums10
- hurl8
- iamb10
- ibex14
- ibis7
- ices7
- idem8
- ides5
- idle6
- iglu8
- ilea5
- ilex12
- ilks9
- ills6
- imps10
- ired5
- ires4
- iris4
- irks8
- isba7
- isle5
- isms7
- item7
- jibe16
- jibs16
- jism16
- jube17
- keir8
- kerb11
- kibe11
- kier8
- kirs8
- kris8
- kues9
- labs8
- lair5
- lamb11
- lame8
- lams8
- lari5
- lars5
- lase5
- lear5
- leas5
- leer5
- lees5
- legs7
- lehr7
- leis5
- leks9
- leku10
- lens6
- less5
- lest5
- lets5
- leud7
- leys7
- liar5
- libs8
- lice8
- lids6
- lied6
- lief8
- lien6
- lier5
- lies5
- lieu6
- life8
- like9
- lima8
- limb11
- lime8
- limn9
- limo8
- limp11
- limy10
- line6
- lins6
- lipe8
- lips8
- lira5
- lire5
- liri5
- lisp8
- list5
- lite5
- lits5
- litu6
- live9
- lobe8
- lobs8
- lore5
- lose5
- lour6
- lube9
- luce9
- lude7
- lues6
- luge8
- lugs8
- lump12
- lums9
- lune7
- lure6
- lurk10
- lush8
- lust6
- lute6
- luvs10
- luxe13
- lwei8
- lyes7
- lyre7
- lyse7
- mabe10
- maes7
- mail8
- mair7
- male8
- mare7
- marl8
- mars7
- maul9
- meal8
- megs9
- meld9
- mell9
- mels8
- melt8
- mems10
- menu9
- meou8
- mere7
- merk11
- merl8
- mesa7
- mesh9
- mess7
- mewl11
- mews10
- mibs10
- mice10
- mids8
- mien8
- migs9
- mike11
- mild9
- mile8
- milk12
- mill9
- milo8
- mils8
- milt8
- mime10