Hi, I am looking for a domain name for an online store . It is Just like Amazon.com .?

[Shahin]

a name that contains A and Z ...
best regards
shahin

[Jake]

There are sites with tools that help you come up with fictitious names, including: wordlab.com, naming.net, wordoid.com, lingzini.com, namestation.com, some of these tools look up the domain name availability as you go.
Any name not already used in a .com web site name is probably not trademarked.

If you are trying to fool people into visiting an affiliate store, using the name of another rain forest might be another method.

In the old days of Yellow Page book adverts, businesses were names like AAA Auto just to get into the beginning of a category. AtoZsomething was another popular method to get a name starting with A.