Meanings1put out; extinguishTo stop a fire from burning.2turn off; turn outTo cut off the path where the power that moves the electricity or machine goes through and stop the electric appliance, etc., from working.3settle; solveTo settle a debt, urgent matter, etc.Examples from Lessons (3)사람들은 전등을 끄지 못해요.People sometimes fail to turn off the lights.Read the Lesson 응, 앱으로 불을 켜고 끈다.Yeah, you turn the lights on and off with the app.Read the Lesson 방에서 불을 끄고 드라마를 보니까 훨씬 집중이 잘 돼.When I watch the drama with the lights off in my room, I can focus much better.Read the Lesson Grammar in These Examples-지 못하다Level 2Cannot-ㄴ다/는다Level 1Plain declarative ending-고Level 1And, and then-지Level 1Sentence ending