7 letter words:
needful11,
6 letter words:
defuel10,
fueled10,
5 letter words:
feued9,
flued9,
unfed9,
duple8,
puled8,
upend8,
elude6,
endue6,
undee6,
unled6,
4 letter words:
pelf9,
delf8,
feed8,
fend8,
feud8,
fled8,
fund8,
deep7,
dupe7,
enuf7,
feel7,
flee7,
flue7,
fuel7,
peed7,
pend7,
pled7,
neep6,
peel6,
peen6,
pele6,
pule6,
dele5,
dene5,
duel5,
dune5,
lend5,
leud5,
lude5,
need5,
nude5,
unde5,
lune4,
3 letter words:
def7,
fed7,
fud7,
dup6,
elf6,
fee6,
fen6,
feu6,
flu6,
fun6,
ped6,
pud6,
pee5,
pen5,
pul5,
pun5,
dee4,
del4,
den4,
due4,
dun4,
eld4,
end4,
led4,
eel3,
lee3,
leu3,
nee3,
2 letter words:
ef5,
fe5,
pe4,
up4,
de3,
ed3,
el2,
en2,
ne2,
nu2,
un2,