벽이

wall

→ 벽
phrase Rare #32,023
wall 이 marks 벽 as the subject of the sentence. 벽 can refer to a physical wall or a metaphorical barrier.
KO: 방에 큰 벽이 있어요.
EN: There’s a big wall in the room.

우리 사이에 벽이 있는 것 같아요

I feel like there's a wall between us.

— 이중 배상 (1944)