5 letter words:
flits8,
lifts8,
4 letter words:
fils7,
fist7,
fits7,
flit7,
lift7,
sift7,
list4,
lits4,
silt4,
slit4,
tils4,
3 letter words:
fil6,
fit6,
ifs6,
sif6,
its3,
lis3,
lit3,
sit3,
til3,
tis3,
2 letter words:
if5,
is2,
it2,
li2,
si2,
st2,
ti2,