5 letter words:
potts7,
pouts7,
putto7,
putts7,
spout7,
stopt7,
stoup7,
stout5,
touts5,
4 letter words:
opts6,
opus6,
oups6,
post6,
pots6,
pott6,
pout6,
puts6,
putt6,
soup6,
spot6,
stop6,
tops6,
tups6,
oust4,
outs4,
sout4,
stot4,
tost4,
tots4,
tout4,
tuts4,
3 letter words:
ops5,
opt5,
oup5,
pos5,
pot5,
pst5,
pus5,
put5,
sop5,
sup5,
top5,
tup5,
upo5,
ups5,
ous3,
out3,
sot3,
sou3,
tot3,
tut3,
uts3,
2 letter words:
op4,
po4,
up4,
os2,
ou2,
so2,
st2,
to2,
us2,
ut2,