There are all kinds of money. There is the most infamous paper money that is issued by most countries as a medium of exchange. But there are other kinds of money. Money in the broadest sense of the word is a piece of material that represents a significant value which can be traded for goods and or services.
Another form of money that can be exchanged for goods and/or services is wisdom. Solving problems for others can net a great deal of money for those with this ability. There are still others that represent the emotional realm such as an actor would have or athletics such as an athlete.
There is money that can even buy your way into the higher realms of heaven (providing you are saved of course). This kind of money is called Good Karma. You accumulate it by doing good deeds like acts of compassion and mercy.