8 letter words:
instinct10,
6 letter words:
ficins11,
fistic11,
tincts8,
5 letter words:
ficin10,
finis8,
fitts8,
snift8,
tifts8,
tinct7,
intis5,
stint5,
tints5,
titis5,
4 letter words:
fisc9,
fini7,
fins7,
fist7,
fits7,
fitt7,
sift7,
tift7,
cist6,
cits6,
tics6,
inns4,
inti4,
isit4,
nisi4,
nits4,
snit4,
tins4,
tint4,
titi4,
tits4,
3 letter words:
fin6,
fit6,
ifs6,
sif6,
cis5,
cit5,
sic5,
tic5,
inn3,
ins3,
its3,
nis3,
nit3,
sin3,
sit3,
tin3,
tis3,
tit3,
2 letter words:
if5,
in2,
is2,
it2,
si2,
st2,
ti2,