6 letter words:
bursal8,
5 letter words:
blurs7,
buras7,
burls7,
bursa7,
slurb7,
sural5,
4 letter words:
albs6,
arbs6,
bals6,
bars6,
blur6,
bras6,
bura6,
burl6,
burs6,
labs6,
rubs6,
slab6,
slub6,
suba6,
urbs6,
lars4,
saul4,
slur4,
sura4,
ursa4,
3 letter words:
abs5,
alb5,
arb5,
bal5,
bar5,
bas5,
bra5,
bur5,
bus5,
lab5,
rub5,
sab5,
sub5,
urb5,
als3,
ars3,
lar3,
las3,
ras3,
sal3,
sau3,
2 letter words:
ab4,
ba4,
al2,
ar2,
as2,
la2,
us2,
