Definitions of money:

• noun:   wealth reckoned in terms of money

  Example: "All his money is in real estate"

• noun:   the most common medium of exchange; functions as legal tender

  Example: "We tried to collect the money he owed us"

• noun:   the official currency issued by a government or national bank

  Example: "He changed his money into francs"

• name:  A surname (rare: 1 in 33333 families; popularity rank in the U.S.: #4641)