barrister vs attorney

barrister and attorney both are nouns.

Word	Noun	Adjective	Verb	Adverb
barrister	Yes	No	No	No
attorney	Yes	No	No	No

As nouns, attorney is a hypernym of barrister; that is, attorney is a word with a broader meaning than barrister:

barrister: a British or Canadian lawyer who speaks in the higher courts of law on behalf of either the defense or prosecution
attorney: a professional person authorized to practice law; conducts lawsuits or gives legal advice

Other hypernyms of barrister include lawyer.

barrister (noun)	attorney (noun)
a British or Canadian lawyer who speaks in the higher courts of law on behalf of either the defense or prosecution	a professional person authorized to practice law; conducts lawsuits or gives legal advice