1. to transfer ownership or control of a private industry or company to the government
2. to make someone a citizen of a particular nation

Examples

• The government decided to nationalize the oil industry.
• Many European countries nationalized their railways after World War II.
• The new administration plans to nationalize healthcare.
• After living here for ten years, she was able to nationalize as a citizen.
• The coal mines were nationalized in the 1940s.
• Some economists argue against nationalizing private banks.
• The process to nationalize took several months of paperwork.