What is the best definition of a financial market?

Financial markets facilitate the interaction between those who need capital with those who have capital to invest. Financial Market refers to the system consisting of financial institutions, financial instruments, regulatory bodies, and organisations. You can read about the Financial Market – Functions, Features, Difference between Money and Capital Market in the given link.

Further readings:

1. Capital Markets – Types, Examples, Features, Structure, Functions, and Advantages
2. Demand and Supply – Concepts of Economy for UPSC