Philosophy encompasses the study of many fundamental aspects of our lives and the world that surrounds us, including the nature of reality, of knowledge, of morality, and of the relationship between the mind and the body. The word 'philosophy ' comes from the Greek φιλοσοφία (philosophia), which means 'love of wisdom.'
Philosophical questions (unlike those of the sciences) are usually foundational and abstract in nature. Philosophy is done primarily through reflection and does not tend to rely on experiment, although the methods used to study philosophy may be analogous to those used in the study of the natural sciences.
References
1. "Philosophy" in Oxford Reference. Viewed 29 Jun 2020. https://www.oxfordreference.com/page/philosophy
2. "What is philosophy?", The Basics of Philosophy, 29 Jun 2020 <http://www.philosophybasics.com/general_whatis.html>
See below:
A five-minute introduction to what philosophy is all about, how it is different from science, religion, and mysticism, and why it matters to all of us. Author: Massimo Pigliucci, Department of Philosophy at CUNY-Lehman College.