What is the meaning of URL

First of all,
If you are asking a question then make its title as much as descriptive as you can , Here I have edited its title but in other question you have just ask "somebody help me" ... but no clue that about what you want help !!! so please next time be descriptive.

Now the answer to your quesiton :
 URL = Uniform resource locator.

In simple url is the address of a server or webpage or something over internet. By its URL you are actually talking about the place where it recides.
eg. http://www.yoindia.com  is the url of yoindia.