Earth vs sky in Korean
지구vs하늘

지구Earth
Earth is the planet where we live. In Korean, this is called 지구. You use it when talking about space, nature, maps, or keeping our planet clean.
When to use Earth
하늘sky
Sky means the space above us, where we can see the sun, clouds, moon, and stars. In Korean, 하늘 is used when talking about weather, colors, and things you see outside. It is a very common everyday word, like saying the sky is blue or cloudy.
When to use skyHow they differ
Earth (지구) and sky (하늘) are nearby Korean vocabulary items learners often meet together. Use “Earth” when Earth is the planet where we live. In Korean, this is called 지구. You use it when talking about space, nature, maps, or keeping our planet… Use “sky” when Sky means the space above us, where we can see the sun, clouds, moon, and stars. In Korean, 하늘 is used when talking about weather, colors…