5 letter words:
fasts8,
fiats8,
fists8,
sifts8,
tufas8,
abuts7,
baits7,
basis7,
bassi7,
basts7,
busts7,
isbas7,
stabs7,
stubs7,
subas7,
tabus7,
tsuba7,
tubas7,
satis5,
situs5,
suits5,
4 letter words:
fabs9,
fibs9,
fubs9,
fast7,
fats7,
fiat7,
fist7,
fits7,
fuss7,
sift7,
tufa7,
abut6,
bait6,
bass6,
bast6,
bats6,
bias6,
bits6,
buss6,
bust6,
buts6,
isba6,
sabs6,
sibs6,
stab6,
stub6,
suba6,
subs6,
tabs6,
tabu6,
tuba6,
tubs6,
aits4,
sati4,
sits4,
suit4,
tass4,
taus4,
tuis4,
utas4,
3 letter words:
fab8,
fib8,
fub8,
aft6,
fas6,
fat6,
fit6,
ifs6,
abs5,
bas5,
bat5,
bis5,
bit5,
bus5,
but5,
sab5,
sib5,
sub5,
tab5,
tub5,
ais3,
ait3,
ass3,
its3,
sat3,
sau3,
sis3,
sit3,
tas3,
tau3,
tis3,
tui3,
uta3,
uts3,
2 letter words:
fa5,
if5,
ab4,
ba4,
bi4,
ai2,
as2,
at2,
is2,
it2,
si2,
ta2,
ti2,
us2,
ut2,