Ethnic cleansing and Pogrom

Ethnic cleansing noun - The mass expulsion and killing of one ethnic or religious group in an area by another ethnic or religious group in that area.

Pogrom and ethnic cleansing are semantically related in mass killing of an ethnic group topic. In some cases you can use "Pogrom" instead a noun phrase "Ethnic cleansing".

Pogrom noun - Organized persecution of an ethnic group (especially Jews).

Ethnic cleansing and pogrom are semantically related in massacre topic. You can use "Ethnic cleansing" instead a noun "Pogrom".