This is the 19032nd most frequent Korean word.
아랫집의
"아랫집의" means "of the house below" or "belonging to the downstairs neighbor."
Here, '아랫집의' is used to indicate possession or a relation to '아랫집' (downstairs residence), identifying the children belonging to it.
아랫집의 아이들이 밖에서 놀고 있어요.
The children from the downstairs apartment are playing outside.
In this context, '아랫집의' specifies the resident's location linked to the downstairs dwelling, showing proximity and ownership.
제 아랫집의 주민은 아주 친절합니다.
The residents of my downstairs apartment are very kind.
Here, '아랫집의' refers to an object, a window, belonging to the downstairs apartment, emphasizing association and belongingness.