5 letter words:
nubia7,
tabun7,
4 letter words:
abut6,
bait6,
bani6,
bint6,
buna6,
bunt6,
tabu6,
tuba6,
anti4,
aunt4,
tain4,
tuna4,
unai4,
unit4,
3 letter words:
ban5,
bat5,
bin5,
bit5,
bun5,
but5,
nab5,
nib5,
nub5,
tab5,
tub5,
ain3,
ait3,
ani3,
ant3,
nit3,
nut3,
tan3,
tau3,
tin3,
tui3,
tun3,
uta3,
2 letter words:
ab4,
ba4,
bi4,
ai2,
an2,
at2,
in2,
it2,
na2,
nu2,
ta2,
ti2,
un2,
ut2,