This is the 653rd most frequent Korean word.
아시아
"Asia" (a continent).
In this sentence, '아시아' is used as a noun referring specifically to the continent of Asia.
아시아는 세계에서 가장 큰 대륙입니다.
Asia is the largest continent in the world.
Here, '아시아' acts as a noun indicating the region containing many countries.
나는 아시아 여러 나라를 여행하고 싶어요.
I want to travel to various countries in Asia.
In this example, '아시아의' is a possessive form signifying that the culture belongs to Asia.