Definition of "Nature" :

noun: the complex of emotional and intellectual attributes that determine a person's characteristic actions and reactions

"It is his nature to help others."

noun: the essential qualities or characteristics by which something is recognized

"It is the nature of fire to burn."

noun: a particular type of thing

"He's interested in trains and things of that nature."

noun: the natural physical world including plants and animals and landscapes etc.

"They tried to preserve nature as they found it."

noun: a causal agent creating and controlling things in the universe

"The laws of nature."