5 letter words:
peise7,
poise7,
4 letter words:
epos6,
opes6,
pees6,
peso6,
pies6,
pise6,
piso6,
pois6,
pose6,
seep6,
sipe6,
spie6,
3 letter words:
ope5,
ops5,
pee5,
pes5,
pie5,
pis5,
poi5,
pos5,
psi5,
sip5,
sop5,
ios3,
iso3,
oes3,
ose3,
see3,
sei3,
2 letter words:
op4,
pe4,
pi4,
po4,
ee2,
es2,
io2,
is2,
oe2,
oi2,
os2,
si2,
so2,