6 letter words:
puffed15,
5 letter words:
unfed9,
upend8,
4 letter words:
puff12,
duff11,
fend8,
feud8,
fund8,
dupe7,
enuf7,
pend7,
dune5,
nude5,
unde5,
3 letter words:
eff9,
def7,
fed7,
fud7,
dup6,
fen6,
feu6,
fun6,
ped6,
pud6,
pen5,
pun5,
den4,
due4,
dun4,
end4,
2 letter words:
ef5,
fe5,
pe4,
up4,
de3,
ed3,
en2,
ne2,
nu2,
un2,