5 letter words:
boric9,
4 letter words:
brow9,
crow9,
crib8,
biro6,
boor6,
brio6,
broo6,
coir6,
3 letter words:
bow8,
cow8,
cob7,
row6,
woo6,
bio5,
boo5,
bro5,
coo5,
cor5,
obi5,
orb5,
orc5,
rib5,
rob5,
roc5,
2 letter words:
ow5,
wo5,
bi4,
bo4,
oi2,
or2,