/ˈnæʃənl səˈprɛməsi/ – Phrase
Definition: quyền lực tối cao của chính quyền liên bang với chính quyền các bang, địa vị ưu tiên của chính quyền liên bang so với chính quyền bang.
A more thorough explanation: National supremacy refers to the principle that the laws and actions of the national government take precedence over those of individual states within a country. This concept is often enshrined in a country’s constitution and ensures that the national government has ultimate authority and control over matters of national importance.
Example: In the United States, the principle of national supremacy is enshrined in the Supremacy Clause of the Constitution, which establishes that federal law takes precedence over conflicting state laws.