| Idiom | Meaning | Example | 
| brain | 
(See what a brain)
 | 
 | 
| brain drain | 
emigration of intelligent people
 | 
If Canada's best professors move  away, it's called a brain drain.
 | 
| brain is fried | 
brain is very tired or ruined by drug abuse
 | 
After writing six exams, my brain was fried - too much studying!
 | 
| brain storm | 
think of ideas together, think tank
 | 
Our family decided to brain storm the problem of wasting food.
 | 
| brain traffic | 
thoughts and information moving through the brain
 | 
I wish I could turn off my mind when brain traffic is too heavy.
 | 
| branch office | 
an office in another location or city
 | 
Please contact our branch office  in your town or city.
 | 
| branch out | 
open a second office/store, expand a company
 | 
Business is very good. It may be time for us to branch out.
 | 
| brand new/ brand spanking new | 
not used at all, just off the assembly line
 | 
Imagine a brand new Mercedes in an accident. What a shame!
 | 
| bravo | 
great, wonderful, more, encore
 | 
"Bravo! Bravo!" the audience roared. They loved Heppner's singing
and were shouting for more.
 | 
| bread | 
money, cash, dough
 | 
Hey, man, we need more bread if we're gonna buy cigarettes.
 |