How to say to collapse in Korean
Korean: 주저앉다[ ju-jeo-an-da ]

Meaning
The word "주저앉다" means to collapse or suddenly sink down, often onto the floor or a seat. It is used when someone loses strength, feels very tired, gets hurt, or is shocked. You can use it for both the body falling down and sitting down heavily because you cannot keep standing.
Example sentences
집에 오자마자 소파에 주저앉았어요.
As soon as I got home, I collapsed onto the sofa.
시험 끝나고 교실 바닥에 주저앉았어요.
After the test, I collapsed onto the classroom floor.
장바구니가 너무 무거워서 가게 앞에 주저앉았어요.
The shopping basket was so heavy that I collapsed in front of the store.
그는 나쁜 소식을 듣고 주저앉았어요.
He heard the bad news and collapsed.





