5 letter words:
kefir12,
liker9,
filer8,
flier8,
lifer8,
rifle8,
4 letter words:
kerf11,
kief11,
keir8,
kier8,
like8,
file7,
fire7,
flir7,
lief7,
life7,
reif7,
rife7,
lier4,
lire4,
liri4,
riel4,
rile4,
3 letter words:
kef10,
kif10,
elk7,
ilk7,
irk7,
kir7,
lek7,
elf6,
fer6,
fie6,
fil6,
fir6,
ref6,
rif6,
ire3,
lei3,
lie3,
rei3,
2 letter words:
ki6,
ef5,
fe5,
if5,
el2,
er2,
li2,
re2,