7 letter words:
seiches12,
6 letter words:
seiche11,
ibices10,
ecesis8,
ibises8,
5 letter words:
beech12,
chess10,
eches10,
hebes10,
bices9,
shies8,
beses7,
bises7,
sices7,
issei5,
seise5,
4 letter words:
chis9,
eche9,
hebe9,
ichs9,
bice8,
hies7,
hiss7,
shes7,
bees6,
bise6,
cees6,
cess6,
ibis6,
ices6,
secs6,
sibs6,
sice6,
sics6,
eses4,
sees4,
seis4,
3 letter words:
chi8,
hic8,
ich8,
hes6,
hie6,
his6,
she6,
bee5,
bes5,
bis5,
cee5,
cis5,
ice5,
sec5,
sib5,
sic5,
ess3,
see3,
sei3,
sis3,
2 letter words:
eh5,
he5,
hi5,
sh5,
be4,
bi4,
es2,
is2,
si2,