pluralism
US /ˈplʊr.əl.ɪ.zəm/
UK /ˈplʊr.əl.ɪ.zəm/

1.
a condition or system in which two or more states, groups, principles, sources of authority, etc., coexist.
:
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The country is known for its cultural pluralism, with many different ethnic groups living together peacefully.
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Religious pluralism is a key feature of modern democratic societies.