Bounce might work, but there are probably better descriptions.
The word is bait.
Bards is a Greek word that means singing storyteller.
Biology is the science of life.
A b word meaning helpful is beneficial.
B
Another word for kindly beginning with 'b' is benevolent.
I have found one called BIOCHEMICAL ENERGY...
babylon a word
bronchitis
by all means
belligerent
bondedbound