This article provides you with information regarding domain name terminology.
In order to have your own specific website address, you need to register your own domain name.
Your domain name is unique to you and when someone types it into an Internet browser they will be taken directly to your space on the Internet where they can view your website.
Having your own domain name is also quite useful when creating an email address. Instead of having firstname.lastname@example.org, you could have a more credible email address such as email@example.com.
This is easy to remember and much more professional.