8 letter words:
caustics12,
7 letter words:
caustic11,
casuist9,
6 letter words:
cactus10,
cistus8,
5 letter words:
cacti9,
ascus7,
casts7,
casus7,
cists7,
cutis7,
ictus7,
scats7,
scuta7,
scuts7,
satis5,
situs5,
suits5,
4 letter words:
acts6,
asci6,
cast6,
cats6,
cist6,
cuss6,
cuts6,
sacs6,
scat6,
scut6,
sics6,
tics6,
aits4,
sati4,
sits4,
suit4,
tass4,
taus4,
tuis4,
utas4,
3 letter words:
act5,
cat5,
cis5,
cut5,
sac5,
sic5,
tic5,
ais3,
ait3,
ass3,
its3,
sat3,
sau3,
sis3,
sit3,
tas3,
tau3,
tis3,
tui3,
uta3,
uts3,
2 letter words:
ai2,
as2,
at2,
is2,
it2,
si2,
ta2,
ti2,
us2,
ut2,