6 letter words:
occies10,
5 letter words:
cisco9,
cosec9,
secco9,
cosie7,
4 letter words:
ecco8,
cose6,
ecos6,
ices6,
seco6,
sice6,
3 letter words:
cis5,
cos5,
eco5,
ice5,
sec5,
sic5,
soc5,
ios3,
iso3,
oes3,
ose3,
sei3,
2 letter words:
es2,
io2,
is2,
oe2,
oi2,
os2,
si2,
so2,