1. A nation that restricts foreign access, trade, and communication; a country with isolationist policies
North Korea is often described as a closed country with limited international relations.
A Coreia do Norte é frequentemente descrita como um país fechado com relações internacionais limitadas.
2. A country that has implemented strict border controls or immigration restrictions
During the pandemic, several nations became closed countries to prevent virus spread.
Durante a pandemia, várias nações se tornaram países fechados para prevenir a propagação do vírus.