9 letter words:
instincts11,
8 letter words:
instinct10,
6 letter words:
tincts8,
insist6,
stints6,
5 letter words:
cists7,
tinct7,
intis5,
snits5,
stint5,
tints5,
titis5,
4 letter words:
cist6,
sics6,
tics6,
inns4,
inti4,
nisi4,
nits4,
sins4,
sits4,
snit4,
tins4,
tint4,
titi4,
tits4,
3 letter words:
cis5,
sic5,
tic5,
inn3,
ins3,
its3,
nit3,
sin3,
sis3,
sit3,
tin3,
tis3,
tit3,
2 letter words:
in2,
is2,
it2,
si2,
ti2,