assimilation
US /əˌsɪm.əˈleɪ.ʃən/
UK /əˌsɪm.əˈleɪ.ʃən/
1.
sự đồng hóa
the process of becoming a part, or making someone become a part, of a group, country, society, etc.:
:
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The assimilation of ethnic Germans in the U.S. was accelerated by the two world wars.