Money is any good or token that functions as a medium of exchange that is
socially and legally accepted in payment for goods and services and in
settlement of debts. Money also serves as a standard of value for measuring
the relative worth of different goods and services and as a store of value.
Some authors explicitly require money to be a standard of deferred
payment.[1]
Money includes both currency, particularly the many circulating currencies
with legal tender status, and various forms of financial deposit accounts,
such as demand deposits, savings accounts, and certificates of deposit. In
modern economies, currency is the smallest component of the money supply.
Money is not the same as real value, the latter being the basic element in
economics. Money is central to the study of economics and forms its most
cogent link to finance. The absence of money causes an economy to be
inefficient because it requires a coincidence of wants between traders, and
an agreement that these needs are of equal value, before a barter exchange
can occur. The efficiency gains through the use of money are thought to
encourage trade and the division of labor, in turn increasing productivity
and wealth.
Paper notes have 3 significant features; The silver stamp, The watermark,
And last but not least: The UV numbers, that show how much the note is worth
under a UV light.
From:
Wikipedia
MONEY