What is US citizen through naturalization mean?

U.S. citizenship through naturalization is the legal process by which a foreign national becomes a citizen of the United States. This process typically involves fulfilling certain requirements, such as residing in the U.S. for a specified period, demonstrating good moral character, passing an English language and civics test, and taking an oath of allegiance. Once these criteria are met and the application is approved, the individual receives a certificate of naturalization, granting them all the rights and responsibilities of U.S. citizenship.