Brazil
noun: Brazilian(s)
adjective: Brazilian
British Virgin Islands
noun: British Virgin Islander(s)
adjective: British Virgin Islander
Brunei
noun: Bruneian(s)
adjective: Bruneian
Bulgaria
noun: Bulgarian(s)
adjective: Bulgarian
Burkina Faso
noun: Burkinabe (singular and plural)
adjective: Burkinabe
Burma
noun: Burmese (singular and plural)
adjective: Burmese
Burundi
noun: Burundian(s)
adjective: Burundian
Cambodia
noun: Cambodian(s)
adjective: Cambodian
Cameroon
noun: Cameroonian(s)
adjective: Cameroonian
Canada
noun: Canadian(s)
adjective: Canadian