The act or process of naturalizing, esp. of investing an alien with the rights and privileges of a native or citizen; also, the state of being naturalized.
The legal process by which an immigrant gets the same rights as a natural-born citizen.
the application process by which one not a citizen by birth may become a U.S. citizen (USC). The basic criteria for naturalization are (a) Lawful Permanent Resident (LPR) status for 5 years (3 years if married to USC); (b) at least 18 years old; (c) physically present for half of the 5- year (or 3- year) period; (d) maintenance of U.S. residence with no lengthy trips abroad; and (e) good moral character.