6 letter words:
lippen10,
lipper10,
nipper10,
nipple10,
ripple10,
5 letter words:
piper9,
peril7,
plier7,
repin7,
ripen7,
liner5,
4 letter words:
perp8,
pipe8,
prep8,
repp8,
lipe6,
pein6,
peri6,
pier6,
pile6,
pine6,
pirn6,
plie6,
ripe6,
lien4,
lier4,
line4,
lire4,
rein4,
riel4,
rile4,
3 letter words:
pep7,
pip7,
lip5,
nip5,
pen5,
per5,
pie5,
pin5,
rep5,
rip5,
ern3,
ire3,
lei3,
lie3,
lin3,
nil3,
rei3,
rin3,
2 letter words:
pe4,
pi4,
el2,
en2,
er2,
in2,
li2,
ne2,
re2,