Non-citizens are individuals who reside in a country but do not possess citizenship in that country. They may be immigrants (legal or undocumented), temporary residents, refugees/asylees, or foreign visitors.
Related terms
Immigration: Immigration is the process by which individuals move permanently to another country for various reasons such as work opportunities or seeking refuge.
Naturalization: Naturalization is the legal process through which non-citizens become citizens of a particular country.
Alienage: This term refers to an individual's status as a foreigner or non-citizen in a particular country.