7 letter words:
breeder10,
rebreed10,
6 letter words:
burred9,
rebred9,
5 letter words:
brede8,
breed8,
redub8,
erred6,
ruder6,
4 letter words:
bedu7,
bred7,
burd7,
drub7,
beer6,
bree6,
burr6,
rube6,
deer5,
dere5,
dree5,
dure5,
durr5,
rede5,
reed5,
rude5,
rued5,
ruer4,
3 letter words:
bed6,
bud6,
deb6,
dub6,
bee5,
brr5,
bur5,
reb5,
rub5,
urb5,
dee4,
due4,
red4,
urd4,
ere3,
err3,
ree3,
rue3,
2 letter words:
be4,
de3,
ed3,
er2,
re2,