da-un-doe-da
to crash (system goes down)
verb
인터넷이 자꾸 다운되어서 게임을 제대로 할 수 없어요.
The internet keeps going down, so I can't play games properly.
서버가 다운되면 모든 사용자가 접속할 수 없습니다.
If the server goes down, no users can access it.
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