6 letter words:
bouton8,
obento8,
5 letter words:
bento7,
beton7,
buteo7,
4 letter words:
bent6,
bone6,
boon6,
boot6,
bout6,
bunt6,
bute6,
ebon6,
oboe6,
tube6,
unbe6,
note4,
onto4,
tone4,
toon4,
tune4,
unto4,
3 letter words:
ben5,
bet5,
boo5,
bot5,
bun5,
but5,
neb5,
nob5,
nub5,
obe5,
tub5,
eon3,
net3,
noo3,
not3,
nut3,
one3,
ono3,
oot3,
out3,
ten3,
toe3,
ton3,
too3,
tun3,
ute3,
2 letter words:
be4,
bo4,
en2,
et2,
ne2,
no2,
nu2,
oe2,
on2,
to2,
un2,
ut2,