Learn Words By Mnemonics: B List

Bolster
to provide support or reinforcement
Example:-
The debaters amassed file boxes full of evidence to bolster their argument.
Mnemonic:-
Remember the picture in your mind in which pillow was giving support to the person sleeping.

Bombast
self-important or pompous writing or speech.
Example:-
The speech was full of sound and fury and bombast.
Mnemonic:-
People who make bomblast are careless about other lives and are self important.

Bucolic
a country person; characteristic of rural areas and their inhabitants. 
Example:-
Filled with browsing cows and bleating sheep, the meadow was charmingly bucolic sight.
Mnemonic:-
sounds a bit like bullocks which are used in country side.

Burgeon 
grow and flourish
Example:-
In the spring, the plants that burgeon are a promise of the beauty that is to come.
Mnemonic:-

burgeon ~ burger. If you eat a lot of burger, you will gain weight (hence grow)