Step 1: Define Fiat Money.
Fiat money is government or central bank-issued currency that has no intrinsic value but is legally recognized and accepted as a medium of exchange. Examples include notes and coins.
Step 2: Distinguish from other terms.
- Broad Money: Encompasses currency, demand deposits, time deposits, and other liquid assets.
- Currency Base: Refers to high-powered money, comprising currency in circulation and bank reserves.
- Narrow Money: Defined as M1, which includes currency in circulation and demand deposits; it is not restricted to coins and notes.
Step 3: Apply to the question.
As the question specifically mentions notes and coins, these fall under the definition of Fiat Money.
Final Answer:
\[\boxed{\text{Fiat Money}}\]