6 letter words:
bruise8,
buries8,
busier8,
rubies8,
5 letter words:
biers7,
birse7,
breis7,
bries7,
brise7,
burse7,
rebus7,
ribes7,
rubes7,
rubus7,
suber7,
sieur5,
usure5,
4 letter words:
bier6,
bise6,
brei6,
brie6,
bris6,
brus6,
burs6,
rebs6,
ribs6,
rube6,
rubs6,
urbs6,
ires4,
iure4,
reis4,
rise4,
rues4,
ruse4,
seir4,
sire4,
suer4,
sure4,
ures4,
urus4,
user4,
3 letter words:
bes5,
bis5,
bru5,
bur5,
bus5,
reb5,
rib5,
rub5,
sib5,
sub5,
urb5,
ers3,
ire3,
rei3,
res3,
rue3,
sei3,
ser3,
sir3,
sri3,
sue3,
sui3,
sur3,
ure3,
use3,
2 letter words:
be4,
bi4,
er2,
es2,
is2,
re2,
si2,
ur2,
us2,