9 letter words:
survivors15,
8 letter words:
survivor14,
6 letter words:
virous9,
visors9,
urosis6,
5 letter words:
rivos8,
virus8,
visor8,
vrous8,
orris5,
risus5,
sorus5,
sours5,
4 letter words:
vivo10,
rivo7,
sovs7,
vors7,
vrou7,
isos4,
ours4,
sirs4,
sori4,
sour4,
sous4,
sris4,
3 letter words:
sov6,
vis6,
vor6,
ios3,
iso3,
ors3,
our3,
ous3,
sir3,
sis3,
sos3,
sou3,
sri3,
sui3,
sur3,
sus3,
2 letter words:
io2,
is2,
oi2,
or2,
os2,
ou2,
si2,
so2,
ur2,
us2,
