6 letter words:
brutal8,
5 letter words:
blart7,
blurt7,
lubra7,
tubal7,
tubar7,
ultra5,
4 letter words:
abut6,
balu6,
baur6,
blat6,
blur6,
brat6,
brut6,
buat6,
bura6,
burl6,
tabu6,
tuba6,
latu4,
ratu4,
3 letter words:
alb5,
arb5,
bal5,
bar5,
bat5,
bra5,
bru5,
bur5,
but5,
lab5,
rub5,
tab5,
tub5,
urb5,
alt3,
art3,
lar3,
lat3,
lur3,
rat3,
rut3,
tar3,
tau3,
uta3,
2 letter words:
ab4,
ba4,
al2,
ar2,
at2,
la2,
ta2,
ur2,
ut2,