5 letter words:
cisco9,
pisco9,
4 letter words:
cops8,
pics8,
scop8,
spic8,
piso6,
pois6,
3 letter words:
cop7,
pic7,
cis5,
cos5,
ops5,
pis5,
poi5,
pos5,
psi5,
sic5,
sip5,
soc5,
sop5,
ios3,
iso3,
2 letter words:
op4,
pi4,
po4,
io2,
is2,
oi2,
os2,
si2,
so2,