sounds like English, but actually is NOT equivalent to English. According to this web page, is an import word from Portuguese language. It originally means England, but its meaning has changed in Japan. It doesn't only mean England, but entire land of the UK now.
So, is the equivalent to the UK.
{} is equivalent to British people, usually means people who have British nationality.
is the equivalent to England.
{} is the equivalent to English people.
By the way, there is a Japanese word []{}. It sometimes means English people, sometimes means British people. So you should avoid using it if you want to make it clear difference between English and British.