5 letter words:
cases7,
coses7,
socas7,
oases5,
4 letter words:
aces6,
case6,
cess6,
coss6,
ocas6,
sacs6,
secs6,
soca6,
oses4,
ossa4,
seas4,
3 letter words:
ace5,
cos5,
oca5,
sac5,
sec5,
ass3,
ess3,
oes3,
ose3,
sae3,
sea3,
sos3,
2 letter words:
ae2,
as2,
es2,
oe2,
os2,
so2,