8 letter words:
unflexed19,
7 letter words:
needful11,
6 letter words:
deflex17,
flexed17,
fluxed17,
deluxe14,
defuel10,
fueled10,
unfeed10,
5 letter words:
fedex16,
exude13,
elfed9,
feued9,
flued9,
unfed9,
elude6,
endue6,
neeld6,
undee6,
unled6,
4 letter words:
flex14,
flux14,
exed12,
exul11,
luxe11,
ulex11,
delf8,
feed8,
fend8,
feud8,
fled8,
fund8,
enuf7,
feel7,
feen7,
flee7,
flue7,
fuel7,
deen5,
dele5,
dene5,
duel5,
dule5,
dune5,
leed5,
lend5,
leud5,
lude5,
need5,
nude5,
unde5,
lune4,
3 letter words:
dex11,
dux11,
lex10,
lux10,
def7,
fed7,
fud7,
elf6,
fee6,
fen6,
feu6,
flu6,
fun6,
nef6,
dee4,
del4,
den4,
due4,
dun4,
eld4,
end4,
led4,
lud4,
ned4,
eel3,
een3,
ene3,
lee3,
leu3,
nee3,
ule3,
2 letter words:
ex9,
xu9,
ef5,
fe5,
de3,
ed3,
ee2,
el2,
en2,
ne2,
nu2,
un2,