6 letter words:
funned10,
5 letter words:
unfed9,
4 letter words:
fend8,
feud8,
fund8,
enuf7,
dune5,
nude5,
unde5,
3 letter words:
def7,
fed7,
fud7,
fen6,
feu6,
fun6,
nef6,
den4,
due4,
dun4,
end4,
ned4,
nun3,
2 letter words:
ef5,
fe5,
de3,
ed3,
en2,
ne2,
nu2,
un2,