8 letter words:
peekaboo16,
7 letter words:
peekabo15,
5 letter words:
apeek11,
ebook11,
pekoe11,
poake11,
pooka11,
4 letter words:
bake10,
beak10,
boak10,
boke10,
boko10,
book10,
keep10,
koap10,
kobo10,
peak10,
peek10,
peke10,
poke10,
pook10,
akee8,
beep8,
boep8,
peba8,
oboe6,
3 letter words:
bok9,
kab9,
keb9,
kep9,
kob9,
kop9,
ake7,
bap7,
bop7,
eek7,
eke7,
kae7,
kea7,
koa7,
oak7,
oka7,
oke7,
abo5,
ape5,
apo5,
bee5,
boa5,
boo5,
oba5,
obe5,
obo5,
oop5,
ope5,
pea5,
pee5,
poa5,
poo5,
2 letter words:
ka6,
ko6,
ab4,
ba4,
be4,
bo4,
ob4,
op4,
pa4,
pe4,
po4,
ae2,
ea2,
ee2,
oe2,
oo2,