Is it immigration to transfer nationality?

Problem description:

Does the concept of immigration refer to the transfer of nationality?

Analysis:

The most common understanding is that when we talk about immigration, we mean to settle in another country and acquire the nationality of the host country. Therefore, your idea is right. Immigration means changing country and nationality.

In a narrow sense, it only refers to the concept mentioned on the second floor, that is, obtaining permanent residency in the host country, rather than "naturalization". Generally speaking, naturalization requires a certain time limit and related conditions.

Therefore, what people generally think of as "immigration" broadly refers to changing nationality, settling in a country and becoming a citizen of that country, and narrowly refers to obtaining the permanent residency in another country.