6 letter words:
blurbs10,
5 letter words:
blubs9,
blurb9,
bulbs9,
burbs9,
blurs7,
burls7,
slurb7,
4 letter words:
blub8,
bubs8,
bulb8,
burb8,
blur6,
burl6,
burs6,
rubs6,
slub6,
urbs6,
slur4,
3 letter words:
bub7,
bur5,
bus5,
rub5,
sub5,
urb5,
2 letter words:
us2,
