nature; the natural world
Refers to the physical world and its phenomena, as opposed to human society or artificial constructs. Common in scientific, environmental, and philosophical contexts.
There are still many unsolved mysteries in the natural world.
人間も自然界の一部である。
Humans are also part of nature.
This chemical does not exist in nature.
Survival is a law of nature.
That animal has survived in the harsh natural world.
Human activity is disrupting the balance of nature.