Bedeutung von “immigration” im Essential American English Dictionary

immigration

noun [ no plural ] us /ˌɪm·ɪˈɡreɪ·ʃən/

B1 the place where people’s official documents are checked when they enter a country, for example, at an airport:

After you’ve been through immigration, you can go and get your luggage.

the process of coming to live in a different country:

immigration policy
immigrate verb present participle immigrating, past tense and past participle immigrated

to come to live in a different country

(Definition von “immigration” aus dem Webster's Essential Mini Dictionary © Cambridge University Press)