6 letter words:
fikier13,
kierie10,
feirie9,
5 letter words:
kefir12,
fermi10,
reiki9,
fiere8,
firie8,
4 letter words:
fike11,
firk11,
keef11,
kerf11,
kief11,
meek10,
merk10,
mike10,
mirk10,
feme9,
ferm9,
firm9,
keir8,
kier8,
reek8,
reik8,
reke8,
feer7,
fere7,
fier7,
fire7,
free7,
reef7,
reif7,
rife7,
emir6,
meer6,
mere6,
meri6,
mire6,
miri6,
riem6,
rime6,
3 letter words:
kef10,
kif10,
fem8,
eek7,
eik7,
eke7,
erk7,
irk7,
kir7,
erf6,
fee6,
fer6,
fie6,
fir6,
ref6,
rif6,
eme5,
mee5,
mir5,
rem5,
rim5,
ere3,
ire3,
ree3,
rei3,
2 letter words:
ki6,
ef5,
fe5,
if5,
em4,
me4,
mi4,
ee2,
er2,
re2,