6 letter words:
burgee9,
burger9,
5 letter words:
grebe8,
urger6,
4 letter words:
jeez20,
zebu15,
geez14,
jube13,
jeer11,
berg7,
burg7,
grub7,
beer6,
bree6,
burr6,
rube6,
eger5,
gree5,
grue5,
guru5,
urge5,
ruer4,
3 letter words:
zee12,
jug11,
jee10,
jeu10,
beg6,
bug6,
bee5,
brr5,
bur5,
reb5,
rub5,
urb5,
erg4,
gee4,
reg4,
rug4,
ere3,
err3,
ree3,
rue3,
2 letter words:
be4,
er2,
re2,