This is the 2485th most frequent Korean word.
동아시아
East Asia
In this sentence, '동아시아' is used to describe the geographic and political region encompassing countries in East Asia.
동아시아 국가들은 경제적인 협력을 강화하고 있다.
East Asian countries are strengthening economic cooperation.
Here, '동아시아' refers to the cultural aspects of the region known as East Asia.
나는 동아시아 문화에 대해서 공부하고 있다.
I am studying East Asian culture.
This usage of '동아시아' signifies the historical and geographical importance of East Asia as a region.