Analysis of information sources in references of the Wikipedia article "Alien (law)" in English language version.
A person who resides within the borders of a country but is not a citizen or subject of that country; a person not owing allegiance to a particular nation. - In the United States, an alien is a person who was born outside the jurisdiction of the United States, who is subject to some foreign government, and who has not been naturalized under U.S. law.
Alien, in national and international law, a foreign-born resident who is not a citizen by virtue of parentage or naturalization and who is still a citizen or subject of another country.
Since 1989, the city's human-rights law has banned discrimination based on citizenship status or "alienage" in employment, housing and public accommodations.