7 letter words:
stiffly16,
6 letter words:
stiffy15,
5 letter words:
fifty14,
fisty11,
fitly11,
stiff11,
tiffs11,
flits8,
lifts8,
silty8,
styli8,
4 letter words:
iffy13,
tiff10,
fils7,
fist7,
fits7,
flit7,
lift7,
sift7,
syli7,
list4,
lits4,
silt4,
slit4,
tils4,
3 letter words:
fly9,
iff9,
fil6,
fit6,
ifs6,
sif6,
sly6,
sty6,
its3,
lis3,
lit3,
sit3,
til3,
tis3,
2 letter words:
fy8,
if5,
is2,
it2,
li2,
si2,
st2,
ti2,
