one who speaks a foreign or strange language which is not understood by another
used by the Greeks of any foreigner ignorant of the Greek language, whether mental or moral, with the added notion after the Persian war, of rudeness and brutality. The word is used in the N.T. without the idea of reproachfulness.
KJV (6) - barbarian, 5; barbarous, 1;
NAS (6) - barbarian, 3; barbarians, 1; natives, 2;