6 letter words:
rubbet10,
tubber10,
5 letter words:
berth10,
brute7,
buret7,
rebut7,
tuber7,
4 letter words:
beth9,
bhut9,
buhr9,
herb9,
bubu8,
burb8,
huer7,
hurt7,
ruth7,
tehr7,
thru7,
brut6,
bute6,
rube6,
tube6,
true4,
3 letter words:
hub8,
bub7,
ebb7,
eth6,
her6,
het6,
hue6,
hut6,
reh6,
the6,
bet5,
bru5,
bur5,
but5,
reb5,
rub5,
tub5,
urb5,
ret3,
rue3,
rut3,
ure3,
ute3,
utu3,
2 letter words:
eh5,
he5,
uh5,
be4,
er2,
et2,
re2,
te2,
ur2,
ut2,