7 letter words:
genuine8,
ingenue8,
6 letter words:
feeing10,
feuing10,
engine7,
5 letter words:
feign9,
fungi9,
genie6,
ennui5,
4 letter words:
enuf7,
fine7,
neif7,
gene5,
genu5,
gien5,
nene4,
nine4,
3 letter words:
fig7,
fug7,
fee6,
fen6,
feu6,
fie6,
fin6,
fun6,
eng4,
gee4,
gen4,
gie4,
gin4,
gnu4,
gun4,
neg4,
inn3,
nee3,
nun3,
2 letter words:
ef5,
fe5,
if5,
en2,
in2,
ne2,
nu2,
un2,