9 letter words:
scissions11,
8 letter words:
coniosis10,
scission10,
7 letter words:
cousins9,
6 letter words:
cousin8,
cussos8,
ionics8,
scions8,
sonics8,
5 letter words:
cions7,
coins7,
conus7,
coons7,
cusso7,
icons7,
incus7,
ionic7,
scion7,
sonic7,
uncos7,
nisus5,
sinus5,
4 letter words:
cion6,
coin6,
coni6,
cons6,
coon6,
coos6,
coss6,
cuss6,
icon6,
sics6,
unci6,
unco6,
ions4,
nisi4,
nous4,
onos4,
onus4,
sins4,
sons4,
soon4,
sous4,
suns4,
suss4,
3 letter words:
cis5,
con5,
coo5,
cos5,
sic5,
ins3,
ion3,
noo3,
nos3,
nus3,
ono3,
ons3,
sin3,
sis3,
son3,
sos3,
sou3,
sun3,
uns3,
2 letter words:
in2,
is2,
no2,
nu2,
oi2,
on2,
os2,
si2,
so2,
un2,
us2,