6 letter words:
instil6,
5 letter words:
intil5,
intis5,
lints5,
4 letter words:
inti4,
isit4,
lins4,
lint4,
list4,
lits4,
nils4,
nisi4,
nits4,
silt4,
slit4,
snit4,
tils4,
tins4,
3 letter words:
ins3,
its3,
lin3,
lis3,
lit3,
nil3,
nis3,
nit3,
sin3,
sit3,
til3,
tin3,
tis3,
2 letter words:
in2,
is2,
it2,
li2,
si2,
st2,
ti2,
