A domain name is the unique web address that visitors can type into the browser to access your website, such as www.doteasy.com. Once a domain name has been registered, no other user can have the same domain name. If the domain name you want has already been registered by another user, Doteasy's domain search page has a "suggestions" feature to help you choose another memorable, alternative domain name. Some other tips include adding "the" or "my" in front of your desired name, or choosing another popular domain extension, like ".net" or your country code domain extension (such as .ca, .uk, etc.).
Remember to ensure that the domain name you want is not trademarked by another user. If the domain name has already been registered, there is a chance that the other user has trademarked the name, or has already created a brand with that name. Be sure to do some research to ensure that the name you want is free of potential infringements or legal issues. You also do not want to cause customer confusion. The last thing you want is to send your potential visitors into the hands of a competing business. Searching for your domain name can help you refine your chosen brand name.