This is the 17499th most frequent Korean word.
성동구
Seongdong-gu: A district in Seoul, South Korea.
'성동구' is used as a locational noun indicating the location where the event occurred (Seongdong-gu).
나는 성동구에서 친구를 만났어요.
I met a friend in Seongdong-gu.
'성동구' acts as the subject noun referring to the district within Seoul (Seongdong-gu).
성동구는 서울의 동쪽에 위치하고 있어요.
Seongdong-gu is located in the eastern part of Seoul.
'성동구' is used possessively, describing the parks belonging to the district (Seongdong-gu).