This is the 17237th most frequent Korean word.
서울을
"서울을" means "Seoul (as the object of a sentence)" in Korean.
In this sentence, "서울을" serves as the direct object of the verb "방문하다" (to visit), indicating the place being visited: Seoul.
나는 서울을 방문하기로 결정했다.
I decided to visit Seoul.
Here, "서울을" acts as the direct object of the verb "떠나다" (to leave), specifying the location being departed from: Seoul.
서울을 떠나는 날이 가까워지고 있어요.
The day of leaving Seoul is approaching.
In this example, "서울을" functions as the direct object of "보다" (to see), denoting Seoul as the entity being observed.