The money in circulation in any country.

Trading a good or service for another good or service, or for money.

The price of one nation's currency in terms of another nation's currency.

Goods and services produced in one nation and sold in other nations.

Goods and services bought from sellers in another nation.

Anything that is generally accepted as final payment for goods and services; serves as a medium of exchange, a store of value and a standard of value. Characteristics of money are portability, stability in value, uniformity, durability and acceptance.