What Is A Web Site?

It's a collection of related web pages, videos or other digital assets with IP address in an Internet Protocol-based network.
SOURCE:en.wikipedia.org

A web site isn't the same as a web page. It's a collection of web pages, and a web page is a document written in HTML and translated by your browser. If you explore any website (like this Blurtit one, for example) you will see that it is made up of several different pages.

A web site is an IP address of a computer on the Internet.

The websites are all kinds of sites that we go to for searching, getting any information or buying somethings etc. Ex: Facebook, twitter, or other kinds  that we go for learning languages as well.

A computer connected to the internet that maintains a series of web pages on the
World Wide Web;