5 letter words:
fault8,
tubal7,
4 letter words:
flab9,
flub9,
flat7,
tufa7,
abut6,
blat6,
tabu6,
tuba6,
latu4,
3 letter words:
fab8,
fub8,
aft6,
fat6,
flu6,
alb5,
bal5,
bat5,
but5,
lab5,
tab5,
tub5,
alt3,
lat3,
tau3,
uta3,
2 letter words:
fa5,
ab4,
ba4,
al2,
at2,
la2,
ta2,
ut2,