What is stock market

What is stock market ?, this questions have been asked by many people for decades. And different answers have been told for this question.

In Wikipedia, it said that:

A stock market or equity market is a public (a loose network of economic transactions, not a physical facility or discrete) entity for the trading of company stock (shares) and derivatives at an agreed price; these are securities listed on a stock exchange as well as those only traded privately.

 Read more in Wiki.

and another opinion from factmonster

The word stock simply refers to a supply. You may have a stock of T-shirts in your closet, or a stock of pencils in your desk. In the financial market, stock refers to a supply of money that a company has raised. This supply comes from people who have given the company money in the hope that the company will make their money grow.
A market is a public place where things are bought and sold. The term "stock market" refers to the business of buying and selling stock. The stock market is not a specific place, though some people use the term "Wall Street"—the main street in New York City's financial district—to refer to the U.S. stock market in general.


Read more in  factmonster

Or a common sharing knowledege saying that:

Stock market is a place where share of listed companies are traded at agreed price.
Prices of share are governed by demand/supply conditions.
As there is more demand for share of reputed companies the price of these share goes on increasing. 

What is stock market