1. An independent state that exercises supreme authority over its territory and population, with the right to self-determination and freedom from external control
Brazil is a sovereign nation with its own laws and government.
O Brasil é uma nação soberana com suas próprias leis e governo.
2. A country recognized internationally as having full political independence and autonomy
Each sovereign nation has the right to make decisions about its own affairs.
Cada nação soberana tem o direito de tomar decisões sobre seus próprios assuntos.