Website 

Website is a group of web page or similar content that is hosted at least one web server. It is identified by domain name. 

Domain name is the address of an website. 

Any website may have only one domain name or sub domain under a domain name.  For example, 

www.eeelm.blogspot.com is a sub domain under domain blogspot.

Here, three parts separated by dot. Middle part is Website.

All website is accessible by world wide web. 

There have several types of website.  Such as social media website , email service provider,  e-commerce website,  

A website may develop by different types of programming language. These programming language are

HTML

Javascript 

CSS

To enter into website there uses a specialized application that is called web browser .

According to structure and functional perspective website may be static and dynamic. 

Static website is coded by HTML and CSS.  Video and audio is usually non interactive.

Dynamic website 

A dynamic website can change it self automatically.