6 letter words:
pipits10,
5 letter words:
pipis9,
pipit9,
tipis7,
4 letter words:
pipi8,
pips8,
pits6,
spit6,
tipi6,
tips6,
isit4,
3 letter words:
pip7,
pis5,
pit5,
psi5,
pst5,
sip5,
tip5,
its3,
sit3,
tis3,
2 letter words:
pi4,
is2,
it2,
si2,
st2,
ti2,