The velocity of money is a measurement of the average number of times money is transferred or exchanged from one person to another.
It is the speed at which money circulates or changes hands in an economy over a given period of time.
The velocity of money in circulation also refer to the rate at which money is spent on goods and services in the economy.
Simply put, it is the average number of times that each unit of money is spent on purchase of goods and services during a given period.