This is the 17390th most frequent Korean word.
선진국
"선진국" means "developed country."
In this sentence, '선진국' refers to a nation that has achieved a high level of economic development, emphasizing Korea's progress in this aspect.
한국은 경제적으로 선진국으로 성장했습니다.
Korea has grown into a developed country economically.
Here, '선진국' is used to denote countries known for their advanced systems, specifically focusing on education.
선진국에서는 교육 시스템이 매우 발달해 있습니다.
In developed countries, the education systems are highly advanced.
In this context, '선진국' highlights nations with overall advancement facing specific issues, such as those related to the environment.