1. A country or territory that has self-governance and the ability to make its own decisions while potentially maintaining some relationship with a larger political entity
Puerto Rico is a U.S. territory functioning as an autonomous country in many respects.
Porto Rico é um território dos EUA funcionando como um país com autonomia em muitos aspectos.
2. A nation with sovereignty and independent political authority over its own affairs
Catalonia aspires to become an autonomous country within or independent of Spain.
A Catalunha aspira a se tornar um país com autonomia dentro ou independente da Espanha.