7 letter words:
fatuous10,
5 letter words:
fatso8,
softa8,
tofus8,
tufas8,
autos5,
4 letter words:
fast7,
fats7,
oafs7,
sofa7,
soft7,
tofu7,
tufa7,
auto4,
oast4,
oats4,
oust4,
outs4,
stoa4,
taos4,
taus4,
utas4,
3 letter words:
aft6,
fas6,
fat6,
fou6,
oaf6,
oft6,
oat3,
out3,
sat3,
sau3,
sot3,
sou3,
tao3,
tas3,
tau3,
uta3,
uts3,
2 letter words:
fa5,
of5,
as2,
at2,
os2,
so2,
ta2,
to2,
us2,
ut2,