6 letter words:
funked14,
unkend11,
funned10,
5 letter words:
nuked10,
unfed9,
4 letter words:
duff11,
funk11,
duke9,
dunk9,
fend8,
feud8,
fund8,
kune8,
neuk8,
nuke8,
enuf7,
dune5,
nude5,
unde5,
3 letter words:
kef10,
eff9,
def7,
fed7,
fud7,
ken7,
kue7,
uke7,
fen6,
feu6,
fun6,
den4,
due4,
dun4,
end4,
nun3,
2 letter words:
ef5,
fe5,
de3,
ed3,
en2,
ne2,
nu2,
un2,