5 letter words:
knife12,
ficin10,
4 letter words:
feck13,
fink11,
kief11,
neck10,
nick10,
fice9,
kine8,
fine7,
neif7,
cine6,
nice6,
3 letter words:
kef10,
kif10,
ick9,
ink7,
ken7,
kin7,
fen6,
fie6,
fin6,
ice5,
2 letter words:
ki6,
ef5,
fe5,
if5,
en2,
in2,
ne2,