A domain name is the name we refer to as the website address i.e. https://www.domain_name.com or refereed to as the home address where the website can be found. When someone searches for your business they will be picking up the ‘domain name’ or adding the domain name directly into the search engine. Having a catch domain people will remember will be beneficial.
Google will find the domain i.e. the website when people search in the search box. And if you type the domain name into your chosen browser, you should directly access that website.