世界
shìjièThe planet Earth and all life on it, or the entire universe.
我们生活在同一个世界上。
We live on the same planet.
世界上有无数的星系。
There are countless galaxies in the universe.
Can refer to both the Earth and the broader universe depending on context.
The human society or civilization as a whole.
世界正在面临气候变化的挑战。
The world is facing the challenge of climate change.
他梦想改变世界。
He dreams of changing the world.
Often used to discuss global issues or human civilization.
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💡Pro Tip
Common Usage
When referring to the planet Earth, '世界' is often used interchangeably with '地球' (Earth), though '世界' can also refer to the broader universe.
⚡Gold Rule
Context Matters
The meaning of '世界' depends heavily on context. In scientific contexts, it may refer to the universe, while in social contexts, it typically refers to human civilization.
📖Word Origin
Composed of '世' (generation, era) and '界' (boundary, realm), originally referring to the human world before expanding to mean the entire planet and universe.
📝Usage Notes
Can be used both concretely (referring to the planet) and abstractly (referring to human civilization). Often paired with '全' (whole) as in '全世界' (the whole world).