9 letter words:
zookeeper24,
6 letter words:
keeper12,
5 letter words:
kreep11,
pekoe11,
poker11,
4 letter words:
zerk17,
prez15,
ooze13,
orzo13,
zero13,
keep10,
peek10,
peke10,
perk10,
poke10,
pork10,
kore8,
reek8,
rook8,
epee6,
peer6,
pere6,
poor6,
pore6,
pree6,
repo6,
rope6,
3 letter words:
zek16,
zep14,
zee12,
zoo12,
kep9,
kop9,
eek7,
eke7,
kor7,
oke7,
ope5,
pee5,
per5,
poo5,
pro5,
rep5,
ere3,
ore3,
ree3,
roe3,
2 letter words:
op4,
pe4,
er2,
oe2,
or2,
re2,