This is the 12152nd most frequent Russian word.
иммиграционную
"Immigration" (adjective form, related to immigration).
Adjective describing the form in relation to immigration.
Мы заполнили иммиграционную форму.
We filled out the immigration form.
Adjective describing the office dealing with immigration.
Она посетила иммиграционную службу сегодня утром.
She visited the immigration office this morning.
Adjective describing the policy related to immigration.