Nature (noun)

1. The physical world and everything in it, including all living things and natural resources.
2. The forces and processes that produce and control the natural world.
3. The inherent or essential qualities of a person or thing.
4. The way in which a person or thing behaves or operates.

Origin:

Middle english: from old french nature, from latin natura, from natus "born", past participle of nasci.

Examples:

1. Nature is full of wonder and beauty.
2. He loved to spend time in nature.
3. The true nature of the problem is still unknown.
4. He has a kind and caring nature.
5. Nature has a way of balancing itself out.