7 letter words:
pekepoo15,
5 letter words:
pekoe11,
opepe9,
4 letter words:
keep10,
peek10,
peke10,
poke10,
pook10,
oppo8,
peep8,
pepo8,
poep8,
poop8,
pope8,
3 letter words:
kep9,
kop9,
eek7,
eke7,
oke7,
pep7,
pop7,
oop5,
ope5,
pee5,
poo5,
2 letter words:
ko6,
op4,
pe4,
po4,
ee2,
oe2,
oo2,