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."