6 letter words:
funned10,
unfeed10,
unbend9,
unbeen8,
5 letter words:
feued9,
unfed9,
bunde8,
unbed8,
benne7,
endue6,
undee6,
4 letter words:
beef9,
feeb9,
feed8,
fend8,
feud8,
fund8,
bede7,
bedu7,
bend7,
bund7,
debe7,
enuf7,
feen7,
been6,
bene6,
bunn6,
unbe6,
deen5,
dene5,
dune5,
need5,
nude5,
unde5,
nene4,
3 letter words:
fub8,
def7,
fed7,
fud7,
bed6,
bud6,
deb6,
dub6,
fee6,
fen6,
feu6,
fun6,
nef6,
bee5,
ben5,
bun5,
neb5,
nub5,
dee4,
den4,
due4,
dun4,
end4,
ned4,
een3,
ene3,
nee3,
nun3,
2 letter words:
ef5,
fe5,
be4,
de3,
ed3,
ee2,
en2,
ne2,
nu2,
un2,