What are the elements of the definition of philosophy?

Definiton of philosophy: the study of the fundamental nature of knowledge, reality, and existence.

Philosophy dates back to thousands of years, all across the globe. Philosophy is a way of thinking that defies what people normally think everyday. Philosophers tackle the nature of language, law, mind, religion and science. Philosophy also generates philosophical inquiry such as history, logic and mathematics. It helps improve an individual mentally, and some consider extentialism and try to explore the world and find out the purpose of the existence of everything.