- A form filled out by a lawful permanent resident of the United States to apply for American citizenship, submitted to the appropriate U.S. Citizenship and Immigration Services Center
- After living in the U.S. for over five years, he finally filled out his Naturalization Application.
- The process of applying for citizenship begins with submitting a Naturalization Application.
- She was thrilled when her Naturalization Application was approved, marking her step toward becoming a U.S. citizen.