Most shared hosting accounts allow for multiple domains to be hosted in a single account.
If you want to add more domains/websites to your account, simply log on to cPanel and click the “Addon Domains” link under the “Domains” section.
You will then be asked to enter your domain name. You will also have to set your desired FTP username for the domain, the folder you want all your new site’s files to be in, and of course a password for the FTP account.
Make sure you point your domain to the nameservers your host provided, otherwise it won’t show the site you uploaded into the addon domain’s directory.