8 letter words:
flipping16,
7 letter words:
lipping12,
6 letter words:
piping11,
filing10,
piling9,
5 letter words:
fling9,
piing8,
pling8,
lipin7,
4 letter words:
flip9,
pipi8,
fini7,
ping7,
pili6,
ling5,
3 letter words:
fig7,
gif7,
pip7,
fil6,
fin6,
gip6,
pig6,
lip5,
nip5,
pin5,
gin4,
lig4,
lin3,
nil3,
2 letter words:
if5,
pi4,
gi3,
in2,
li2,