Money as you know it, as you're used to using in everyday life, when you hear the term \"money\". Examples include the U.S. dollar, the euro, the British pound, the Japanese Yen or the Chinese Yuan. Any currency backed by a government and issued by its central bank is considered legal tender and fiat
Example
“The U.S. dollar is the world's primary reserve fiat currency — unlike Bitcoin, its supply is controlled by the Federal Reserve and it is accepted as legal tender throughout the United States.”