Nation-state: A nation-state is a political entity where the boundaries of a nation (a group of people with shared characteristics) align with the boundaries of a state.
Autonomy:Autonomy refers to the ability of a region or group within a country to self-govern and make decisions independently.
Supranationalism: Supranationalism is when multiple states voluntarily come together and delegate some powers to an international organization, such as the European Union.