7 letter words:
piperic13,
6 letter words:
pipier10,
5 letter words:
cippi11,
cripe9,
piper9,
price9,
icier7,
4 letter words:
epic8,
perp8,
pice8,
pipe8,
pipi8,
prep8,
repp8,
ripp8,
cire6,
eric6,
icer6,
peri6,
pier6,
rice6,
ripe6,
3 letter words:
cep7,
pec7,
pep7,
pic7,
pip7,
ice5,
per5,
pie5,
pir5,
pre5,
rec5,
rep5,
rip5,
ire3,
rei3,
2 letter words:
pe4,
pi4,
er2,
re2,