Common words:
* Brave
* Bright
* Brown
* Brush
* Bread
* Break
* Bridge
* Bring
* Broad
* Brother
Less common words:
* Bramble
* Brawn
* Breeze
* Brief
* Brilliant
* Broil
* Bronze
* Browse
* Bruise
* Brutal
Technical words:
* Brach
* Braille
* Brandy
* Brass
* Brawny
* Breezeway
* Brogues
* Bromine
* Bronchitis
* Brunette
Proper nouns:
* Brazil
* Britain
* Brittany
* Brooklyn
* Bruce
* Brenda
* Bryan
This list is not exhaustive, but it gives you a good starting point.