5 letter words:
often8,
4 letter words:
fent7,
foen7,
fone7,
font7,
note4,
tone4,
3 letter words:
eft6,
fen6,
fet6,
foe6,
fon6,
nef6,
oft6,
tef6,
eon3,
net3,
not3,
one3,
ten3,
toe3,
ton3,
2 letter words:
ef5,
fe5,
of5,
en2,
et2,
ne2,
no2,
oe2,
on2,
te2,
to2,