pogrom
noun [ C ] uk/ˈpɒɡ.rəm/ us/ˈpoʊ.ɡrəm/
（种族或宗教）大屠杀，集体杀戮
an act of organized cruel behaviour or killing that is done to a large group of people because of their race or religion
The famines and pogroms in 19th-century eastern Europe forced many Jewish refugees to emigrate. 19世纪东欧的饥荒和大屠杀迫使许多犹太难民移居国外。