4 letter words:
fuze16,
zein13,
zine13,
zone13,
enuf7,
fine7,
fino7,
foin7,
info7,
neif7,
3 letter words:
fez15,
fiz15,
zin12,
fen6,
feu6,
fie6,
fin6,
foe6,
fon6,
fou6,
fun6,
eon3,
ion3,
one3,
2 letter words:
ef5,
fe5,
if5,
of5,
en2,
in2,
ne2,
no2,
nu2,
oe2,
oi2,
on2,
un2,