5 letter words:
oppos9,
poops9,
pious7,
4 letter words:
sijo11,
oppo8,
pips8,
poop8,
pops8,
pups8,
oops6,
opus6,
oups6,
piso6,
pois6,
poos6,
soop6,
soup6,
3 letter words:
jus10,
pip7,
pop7,
pup7,
oop5,
ops5,
oup5,
pis5,
piu5,
poi5,
poo5,
pos5,
psi5,
pus5,
sip5,
sop5,
sup5,
upo5,
ups5,
ios3,
iso3,
oos3,
ous3,
sou3,
sui3,
2 letter words:
jo9,
op4,
pi4,
po4,
up4,
io2,
is2,
oi2,
oo2,
os2,
ou2,
si2,
so2,
us2,