What is the meaning of nature?

noun

• The essential qualities or characteristics by which something is recognized.
  • usage: "it is the nature of fire to burn"; "the true nature of jealousy"
• A causal agent creating and controlling things in the universe.
  • usage: "the laws of nature"; "nature has seen to it that men are stronger than women"
• The natural physical world including plants and animals and landscapes etc..
  • usage: "they tried to preserve nature as they found it"
• The complex of emotional and intellectual attributes that determine a person's characteristic actions and reactions.
  • usage: "it is his nature to help others"
• A particular type of thing.
  • usage: "problems of this type are very difficult to solve"; "he's interested in trains and things of that nature"; "matters of a personal nature"