barrister(n = noun.person) - a British or Canadian lawyer who speaks in the higher courts of law on behalf of either the defense or prosecution;
is a kind of attorney, lawyer
has particulars: counsel to the crown, sergeant, sergeant-at-law, serjeant, serjeant-at-law

   Counselor at law; a counsel admitted to plead at the bar, and undertake the public trial of causes, as distinguished from an attorney or solicitor. See Attorney. [1913 Webster]

barrister, n. (in full barrister-at-law)
1 Brit. a person called to the bar and entitled to practise as an advocate in the higher courts.
2 US a lawyer.

Etymology:
16th c.: f. BAR(1), perh. after minister

N  lawyer, attorney, legal counsel, counsel, counsellor, counsellor at law, attorney at law, jurist, legist, civilian, pundit, publicist, juris consult, legal adviser, advocate, barrister, barrister at law, King's or Queen's counsel, K, C, Q, C, silk gown, leader, sergeant-at-law, bencher, tubman, judge, bar, legal profession, bar association, association of trial lawyers, officer of the court, gentleman of the long robe, junior bar, outer bar, inner bar, equity draftsman, conveyancer, pleader, special pleader, solicitor, proctor, notary, notary public, scrivener, cursitor, writer, writer to the signet, S, S, C, limb of the law, pettifogger, vakil, legal beagle, legal secretary, legal assistant, law student, learned in the law, at the bar, forensic, esquire, esquired, banco regis.