6 letter words:
fustet9,
5 letter words:
fetts8,
fetus8,
tufts8,
putts7,
setup7,
stept7,
stupe7,
upset7,
4 letter words:
efts7,
fest7,
fets7,
fett7,
feus7,
fuse7,
fust7,
tefs7,
tuft7,
pest6,
pets6,
puts6,
putt6,
sept6,
spet6,
spue6,
step6,
supe6,
tups6,
sett4,
stet4,
suet4,
test4,
tets4,
tuts4,
utes4,
3 letter words:
efs6,
eft6,
fes6,
fet6,
feu6,
tef6,
pes5,
pet5,
pst5,
pus5,
put5,
sup5,
tup5,
ups5,
est3,
set3,
sue3,
tes3,
tet3,
tut3,
use3,
ute3,
uts3,
2 letter words:
ef5,
fe5,
pe4,
up4,
es2,
et2,
st2,
te2,
us2,
ut2,