7 letter words:
nonfuel10,
6 letter words:
bouffe14,
befoul11,
funnel9,
5 letter words:
bluff13,
buffo13,
felon8,
belon7,
bonne7,
boule7,
noble7,
4 letter words:
boff12,
buff12,
luff10,
flub9,
enuf7,
floe7,
flue7,
foul7,
fuel7,
blue6,
bole6,
bone6,
bunn6,
ebon6,
lobe6,
lube6,
unbe6,
enol4,
leno4,
lone4,
lune4,
neon4,
noel4,
none4,
noun4,
3 letter words:
eff9,
off9,
fob8,
fub8,
elf6,
fen6,
feu6,
flu6,
foe6,
fon6,
fou6,
fun6,
bel5,
ben5,
bun5,
lob5,
neb5,
nob5,
nub5,
obe5,
eon3,
leu3,
nun3,
ole3,
one3,
2 letter words:
ef5,
fe5,
of5,
be4,
bo4,
el2,
en2,
lo2,
ne2,
no2,
nu2,
oe2,
on2,
un2,