This document discusses the meaning, definition, importance and functions of banks. It begins by explaining the origins of the word "bank" and then provides several definitions of a bank from various sources. It emphasizes that a bank accepts deposits from the public and lends money to earn interest. The document also outlines key functions of modern banks like facilitating payments, capital formation, trade financing, and foreign exchange services. Finally, it lists important qualities for a good banking system such as adequate capital, good reputation, and liquidity.