7 letter words:
bethumb16,
5 letter words:
thumb12,
4 letter words:
beth9,
bhut9,
meth9,
them9,
bute6,
mute6,
tube6,
3 letter words:
hem8,
hub8,
hum8,
bub7,
bum7,
ebb7,
eth6,
het6,
hue6,
hut6,
the6,
bet5,
but5,
emu5,
met5,
meu5,
mut5,
tub5,
tum5,
ute3,
2 letter words:
hm7,
eh5,
he5,
uh5,
be4,
em4,
me4,
mu4,
um4,
et2,
te2,
ut2,