5 letter words:
apoop9,
oppos9,
poops9,
4 letter words:
apps8,
oppo8,
paps8,
poop8,
pops8,
apos6,
apso6,
oops6,
poas6,
poos6,
soap6,
soop6,
3 letter words:
app7,
pap7,
pop7,
apo5,
asp5,
oop5,
ops5,
pas5,
poa5,
poo5,
pos5,
sap5,
sop5,
spa5,
oos3,
2 letter words:
op4,
pa4,
po4,
as2,
oo2,
os2,
so2,