the Earth and outer space - general words

nature

nature [noun] (LIFE)

all the animals, plants, rocks, etc. in the world and all the features, forces, and processes that happen or exist independently of people, such as the weather, the sea, mountains, the production of young animals or plants, and growth

US /ˈneɪ.tʃɚ/ 
UK /ˈneɪ.tʃər/ 
Example: 

This new technique of artificially growing cells copies what actually happens in nature.

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