Immigration benefit refers to a privilege afforded to immigrants that allows them to enter or reside in a country. Synonyms for immigration benefit include visa, residency, permit, asylum, green card, citizenship, and naturalization. A visa is a document that permits entry into a country for a specified period. Residency refers to the legal status of living in a country. A permit grants a specific activity or employment, while asylum is the protection afforded to refugees. A green card is a permanent residency card issued to immigrants, and citizenship refers to the status of being a member of a country. Naturalization is the process of becoming a citizen through legal means.