.com, .store, .tv .etc,

As a having your own name as a website address - you usually have a number of options.

Whatever type of .yourchoice you chose - please know it is a rental, the fee to use it as what represents your brand is yearly.  Though you are able to buy or prepay a number of years ahead.  Also this is not up to me this is what the licensing companies do. 

URLS are the names we use and seen in plain text that are connected to a numerical internet address.

That numerical address is what is used to find you on the internet. 

The plain text name is for the Humans that use the internet. :) 

If you're really curious for more - this is really good description. 

https://developer.mozilla.org/en-US/docs/Learn/Common_questions/Web_mechanics/What_is_a_URL