5 letter words:
knife12,
4 letter words:
kiff14,
fike11,
fink11,
kief11,
fief10,
fife10,
niff10,
kine8,
feni7,
fine7,
neif7,
nief7,
nife7,
3 letter words:
kef10,
kif10,
eff9,
iff9,
eik7,
ink7,
ken7,
kin7,
nek7,
fen6,
fie6,
fin6,
nef6,
nie3,
2 letter words:
ki6,
ef5,
fe5,
if5,
en2,
in2,
ne2,