2
general::
noun coming to live in a country ADJ. illegal | large-scale, mass VERB + IMMIGRATION control, restrict laws restricting immigration into the US IMMIGRATION + NOUN control, law, policy, rules | authority, officer, official, service PREP. ~ from There was a sudden increase in immigration from Eastern Europe. (also immigration control) at a port/airport VERB + IMMIGRATION go/pass through We landed at Heathrow and went through customs and immigration. IMMIGRATION + NOUN checks, formalities, procedures calls for tighter immigration procedures
Oxford Collocations Dictionary