5 letter words:
preop9,
4 letter words:
jeez20,
prez15,
jeep13,
zero13,
jeer11,
peep8,
pepo8,
perp8,
pope8,
prep8,
prop8,
repp8,
peer6,
pere6,
pore6,
pree6,
repo6,
rope6,
3 letter words:
zep14,
zee12,
jee10,
joe10,
pep7,
pop7,
ope5,
pee5,
per5,
pro5,
rep5,
ere3,
ore3,
ree3,
roe3,
2 letter words:
jo9,
op4,
pe4,
er2,
oe2,
or2,
re2,