A Website is one of the many functions a domain can have.
your website can be http://www.freelinux.co.za
which is it's address.
a DNS Server will change the www.freelinux.co.za part into an IP number
so that the Computers on the Internet will know how to route the traffic
for your website to the correct Webserver.
usually your website will contain files in a special format.
this format is called HTML (Hyper Text Markup Language)
and looks something like this :

< head > < body > < h1 >Hello World< /h1 > < /body > < /head >

This will display "Hello World" in the top left hand corner of a web browser.

The Web Client or Browser (Internet Exploder / Netscape / Mozilla / Konqueror / Opera etc. )
reads this file and then decides how to display it on your screen.

See, easy as pie.

Need advice etc. ? mail me andre@andre.co.za