Most people when they register with and buy into a hosting platform assume they can only install one website on that platform, but this is not the case. You can install as many as you like, as long as your plan support the bandwidth and storage of the files. If you want to install several wordpress sites, you need to ensure the platform supports wordpress, ideally through Simple Scripts. This is infinitely easier of the host has the installation facility built into their platform, but can still be done.
The key is to not install the wordpress platform in the root of your account, but rather inside a folder inside your htdocs folder. The advantage of installing your sites in folders within the htdocs is that you can have several folders in this area and each can contain another site. There’s just a few step to doing this and once you master it, you can have as many sites as you like. Watch this tutorial video to that shows you how.