6 letter words:
builds9,
5 letter words:
birds8,
build8,
burds8,
dribs8,
drubs8,
birls7,
blurs7,
burls7,
slurb7,
dirls6,
lurid6,
ursid6,
4 letter words:
bids7,
bird7,
buds7,
burd7,
dibs7,
drib7,
drub7,
dubs7,
birl6,
blur6,
bris6,
burl6,
burs6,
libs6,
ribs6,
rubs6,
slub6,
urbs6,
dirl5,
lids5,
rids5,
sild5,
slid5,
surd5,
urds5,
slur4,
3 letter words:
bid6,
bud6,
dib6,
dub6,
bis5,
bur5,
bus5,
lib5,
rib5,
rub5,
sib5,
sub5,
urb5,
dis4,
dui4,
ids4,
lid4,
rid4,
urd4,
lis3,
sir3,
sri3,
2 letter words:
bi4,
id3,
is2,
li2,
si2,
us2,