7 letter words:
ascesis9,
cissies9,
6 letter words:
cassis8,
saices8,
isseis6,
5 letter words:
cases7,
saice7,
sices7,
asses5,
issei5,
sises5,
4 letter words:
aces6,
asci6,
case6,
cess6,
ices6,
sacs6,
secs6,
sice6,
sics6,
sass4,
seas4,
seis4,
3 letter words:
ace5,
cis5,
ice5,
sac5,
sec5,
sic5,
ais3,
ass3,
ess3,
sae3,
sea3,
sei3,
sis3,
2 letter words:
ae2,
ai2,
as2,
es2,
is2,
si2,