Q.
What is the meaning of money?
A.
Money is used to equate to 'wealth', like Bill Gates has so much money that he can buy almost everything.
However, in economic terms, Money is "the set of assets in the economy that people regularly use to buy goods and services from each other".
This is a more descriptive way of money as it is different from wealth, as wealth cannot immediately buy you a meal before it is converted to money. Unless in the era of barter trade, the medium of exchange in today's society is by means of money. Of course, wealth can very easily exchange to become money, and money can buy wealth back, like selling a property and buying up another.
Ref:
Own account with definition from:
Mankiw, N G. 2012. Principles of economics. South-western Cengage Learning. Page 620.