9 letter words:
beekeeper17,
6 letter words:
keeper12,
beeper10,
5 letter words:
kreep11,
4 letter words:
berk10,
keep10,
kerb10,
peek10,
peke10,
perk10,
beep8,
reek8,
beer6,
bree6,
epee6,
peer6,
pere6,
pree6,
3 letter words:
kep9,
eek7,
eke7,
bee5,
pee5,
per5,
reb5,
rep5,
ere3,
ree3,
2 letter words:
be4,
pe4,
er2,
re2,