7 letter words:
cobbers13,
6 letter words:
cobber12,
sobber10,
5 letter words:
cobbs11,
bores7,
brose7,
ceros7,
cores7,
corse7,
robes7,
score7,
sober7,
4 letter words:
cobb10,
bobs8,
cobs8,
ebbs8,
bore6,
bros6,
cero6,
core6,
cors6,
obes6,
orbs6,
orcs6,
rebs6,
recs6,
robe6,
robs6,
rocs6,
sorb6,
eros4,
ores4,
roes4,
rose4,
sore4,
3 letter words:
bob7,
cob7,
ebb7,
bes5,
bos5,
bro5,
cor5,
cos5,
obe5,
orb5,
orc5,
reb5,
rec5,
rob5,
roc5,
sec5,
sob5,
ers3,
oes3,
ore3,
ors3,
ose3,
res3,
roe3,
ser3,
2 letter words:
be4,
bo4,
er2,
es2,
oe2,
or2,
os2,
re2,
so2,
