naturalization

noun

plural naturalizations
: the act or process of naturalizing : the state of being naturalized: such as
a
: the course of action undertaken to become a citizen of a country other than the country where one was born
I complete the application for naturalization, wondering whether I know enough American history and government, and whether I could be disqualified for not knowing all the unmemorable lines of Francis Scott Key's "Star Spangled Banner."—Judy Ray
b
of a non-native plant or animal : the process of becoming or the state of being established in the wild so that growth and reproduction are possible without human intervention
This phenomenon follows the typical pattern of invading plant and animal species, the gradual process of naturalization by which ecological balance tends to reassert.—John Eastman

Examples of naturalization in a Sentence

Recent Examples on the Web
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The 22 others were facing a combination of felony charges including lying on their naturalization application during interviews or on voter registration forms. — Arkansas Online, 24 Oct. 2026 Some were also charged with illegally voting and lying on naturalization paperwork. — ABC News, 24 Oct. 2026 She was given 10 days to surrender her certificate of naturalization, along with any copies in her possession, to government attorneys. — Antonio María Delgado, Miami Herald, 22 Oct. 2026 Federal court revokes citizenship On June 8, the DOJ filed a civil complaint seeking to revoke Acosta Torres' naturalization. — Sergio Candido, CBS News, 22 Oct. 2026 See All Example Sentences for naturalization

Word History

First Known Use

1558, in the meaning defined above

Time Traveler
The first known use of naturalization was in 1558

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Cite this Entry

“Naturalization.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/naturalization. Accessed 27 Oct. 2026.

Kids Definition

naturalization

noun
nat·​u·​ral·​i·​za·​tion
ˌnach-(ə-)rə-lə-ˈzā-shən
: the act or process of naturalizing : the state of being naturalized
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