5 letter words:
courb9,
croup9,
4 letter words:
zobu15,
burp8,
coup8,
crop8,
curb8,
prob8,
cour6,
pour6,
roup6,
3 letter words:
coz14,
cuz14,
poz14,
bop7,
cob7,
cop7,
cub7,
cup7,
pub7,
bor5,
bro5,
bru5,
bur5,
cor5,
cru5,
cur5,
orb5,
orc5,
oup5,
pro5,
pur5,
rob5,
roc5,
rub5,
ruc5,
upo5,
urb5,
urp5,
our3,
2 letter words:
zo11,
bo4,
ob4,
op4,
po4,
up4,
or2,
ou2,
ur2,