6 letter words:
brogue9,
5 letter words:
bourg8,
erugo6,
rogue6,
rouge6,
4 letter words:
zebu15,
zero13,
berg7,
burg7,
grub7,
bore6,
robe6,
rube6,
ergo5,
goer5,
gore5,
grue5,
ogre5,
urge5,
euro4,
roue4,
3 letter words:
beg6,
bog6,
bug6,
gob6,
bro5,
bur5,
obe5,
orb5,
reb5,
rob5,
rub5,
urb5,
ego4,
erg4,
gor4,
reg4,
rug4,
ore3,
our3,
roe3,
rue3,
2 letter words:
be4,
bo4,
go3,
er2,
oe2,
or2,
re2,