5 letter words:
tabun7,
4 letter words:
abut6,
buna6,
bunt6,
tabu6,
tuba6,
anta4,
aunt4,
tuna4,
3 letter words:
aba5,
baa5,
ban5,
bat5,
bun5,
but5,
nab5,
nub5,
tab5,
tub5,
ana3,
ant3,
nut3,
tan3,
tau3,
tun3,
uta3,
2 letter words:
ab4,
ba4,
aa2,
an2,
at2,
na2,
nu2,
ta2,
un2,
ut2,