9 letter words:
boxkeeper24,
6 letter words:
keeper12,
reebok12,
beeper10,
5 letter words:
boxer14,
berko11,
broke11,
kreep11,
pekoe11,
poker11,
proke11,
probe9,
rebop9,
boree7,
4 letter words:
expo13,
prex13,
oxer11,
berk10,
boke10,
bork10,
keep10,
kerb10,
peek10,
peke10,
perk10,
poke10,
pork10,
beep8,
boep8,
kero8,
kore8,
prob8,
reek8,
reke8,
roke8,
beer6,
bere6,
bore6,
bree6,
epee6,
peer6,
pere6,
pore6,
pree6,
repo6,
robe6,
rope6,
3 letter words:
kex14,
box12,
pox12,
exo10,
rex10,
bok9,
keb9,
kep9,
kob9,
kop9,
bop7,
eek7,
eke7,
erk7,
kor7,
oke7,
rok7,
bee5,
bor5,
bro5,
obe5,
ope5,
orb5,
pee5,
per5,
pre5,
pro5,
reb5,
rep5,
rob5,
ere3,
ore3,
ree3,
reo3,
roe3,
2 letter words:
ex9,
ox9,
ko6,
be4,
bo4,
ob4,
op4,
pe4,
po4,
ee2,
er2,
oe2,
or2,
re2,