8 letter words:
rubboard13,
6 letter words:
durbar9,
arbour8,
ardour7,
5 letter words:
board8,
broad8,
dobra8,
arbor7,
burro7,
ardor6,
doura6,
durra6,
4 letter words:
babu8,
barb8,
bubo8,
burb8,
bard7,
baud7,
brad7,
burd7,
darb7,
daub7,
drab7,
drub7,
boar6,
bora6,
bura6,
burr6,
dorr5,
dour5,
dura5,
duro5,
durr5,
orad5,
road5,
orra4,
roar4,
3 letter words:
bob7,
bub7,
bad6,
bod6,
bud6,
dab6,
dub6,
abo5,
arb5,
bar5,
boa5,
bra5,
bro5,
brr5,
bur5,
oba5,
orb5,
rob5,
rub5,
urb5,
ado4,
dor4,
duo4,
oda4,
oud4,
rad4,
rod4,
udo4,
urd4,
oar3,
ora3,
our3,
2 letter words:
ab4,
ba4,
bo4,
ad3,
do3,
od3,
ar2,
or2,