6 letter words:
knifes13,
sicken12,
5 letter words:
fecks14,
finks12,
kiefs12,
knife12,
necks11,
nicks11,
sneck11,
snick11,
fices10,
kines9,
skein9,
fines8,
neifs8,
cines7,
since7,
4 letter words:
feck13,
fink11,
kefs11,
kief11,
kifs11,
neck10,
nick10,
sick10,
fice9,
fisc9,
inks8,
kens8,
kine8,
kins8,
sike8,
sink8,
skin8,
fens7,
fine7,
fins7,
neif7,
seif7,
cine6,
ices6,
nice6,
sice6,
sine4,
3 letter words:
kef10,
kif10,
ick9,
ink7,
ken7,
kin7,
kis7,
ski7,
efs6,
fen6,
fes6,
fie6,
fin6,
ifs6,
cis5,
ice5,
sec5,
sic5,
ens3,
ins3,
sei3,
sen3,
sin3,
2 letter words:
ki6,
ef5,
fe5,
if5,
en2,
es2,
in2,
is2,
ne2,
si2,