Web Site
A website is a collection of pages containing text,images and videos.Every page in the web will be connected to a root node called as domain name to make it easier to be found.
Every time when a page is created it will be stored in a unique uniform resource location which is attached to its domain name.
for EX : a website owner with domain name abc.com creates a page called apple,then it automatically saved with its own uniform resource location attached to its domain,and the page's address(Uniform Resource Location) would be abc.com/apple/html.
And All the stored data in the web can be viewed by punching in the URL address in the browser.
There are More than 15,000 million websites available in the whole web.