7 letter words:
cobbier13,
6 letter words:
cobber12,
boobie10,
corbie10,
5 letter words:
boric9,
bribe9,
cooer7,
icier7,
oribi7,
oorie5,
4 letter words:
cobb10,
bice8,
boob8,
crib8,
bier6,
biro6,
boor6,
bore6,
brie6,
brio6,
broo6,
cero6,
cire6,
coir6,
core6,
oboe6,
rice6,
robe6,
3 letter words:
bib7,
bob7,
cob7,
ebb7,
bio5,
boo5,
bro5,
coo5,
cor5,
ice5,
obe5,
obi5,
orb5,
orc5,
reb5,
rec5,
rib5,
rob5,
roc5,
ire3,
ore3,
rei3,
roe3,
2 letter words:
be4,
bi4,
bo4,
er2,
oe2,
oi2,
or2,
re2,