5 letter words:
kazoo18,
razoo14,
croak11,
crook11,
pooka11,
copra9,
karoo9,
4 letter words:
zack19,
czar15,
orzo13,
pack12,
pock12,
cark10,
cook10,
cork10,
koap10,
park10,
pook10,
pork10,
rack10,
rock10,
capo8,
carp8,
coop8,
crap8,
crop8,
karo8,
kora8,
koro8,
okra8,
paco8,
poco8,
rook8,
arco6,
orca6,
poor6,
prao6,
proa6,
proo6,
roop6,
3 letter words:
caz14,
coz14,
poz14,
zap14,
azo12,
zoa12,
zoo12,
kop9,
ark7,
cap7,
cop7,
koa7,
kor7,
oak7,
oka7,
pac7,
rok7,
apo5,
arc5,
car5,
coo5,
cor5,
oca5,
oop5,
orc5,
par5,
poa5,
poo5,
pro5,
rap5,
roc5,
oar3,
oor3,
ora3,
roo3,
2 letter words:
za11,
zo11,
ka6,
ko6,
op4,
pa4,
po4,
ar2,
oo2,
or2,