6 letter words:
caseic10,
5 letter words:
cacas9,
caeca9,
aecia7,
saice7,
4 letter words:
size13,
caca8,
ceca8,
aces6,
asci6,
casa6,
case6,
ices6,
sice6,
asea4,
3 letter words:
zzz30,
zas12,
ace5,
cis5,
ice5,
sac5,
sec5,
sic5,
aas3,
ais3,
sae3,
sea3,
sei3,
2 letter words:
za11,
aa2,
ae2,
ai2,
as2,
es2,
is2,
si2,