5 letter words:
onion5,
4 letter words:
fink11,
ikon8,
kino8,
nook8,
oink8,
fino7,
foin7,
info7,
noni4,
noon4,
3 letter words:
kif10,
ink7,
kin7,
koi7,
kon7,
oik7,
fin6,
fon6,
oof6,
inn3,
ion3,
non3,
noo3,
ono3,
oon3,
2 letter words:
ki6,
ko6,
if5,
of5,
in2,
io2,
no2,
oi2,
on2,
oo2,