5 letter words:
apsis7,
aspis7,
pious7,
pisos7,
psoai7,
psoas7,
soaps7,
soups7,
oasis5,
ossia5,
4 letter words:
apos6,
asps6,
opus6,
pass6,
pias6,
piso6,
piss6,
pois6,
psis6,
puss6,
saps6,
sips6,
soap6,
sops6,
soup6,
spas6,
sups6,
upas6,
ossa4,
sous4,
3 letter words:
apo5,
asp5,
ops5,
pas5,
pia5,
pis5,
piu5,
poi5,
psi5,
pus5,
sap5,
sip5,
sop5,
spa5,
sup5,
upo5,
ups5,
ais3,
ass3,
sau3,
sis3,
sos3,
sou3,
2 letter words:
op4,
pa4,
pi4,
up4,
ai2,
as2,
is2,
oi2,
os2,
si2,
so2,
us2,