The work you've done so far has presumably been restricted to your own personal computer or laptop. Without sending your files through email, or transferring them onto a thumb drive and passing it around, not many people can see what you've made.
The key to sharing your website with the masses is getting your files online. But how do you do that? And how do people find it?
Have you ever uploaded photos to your Facebook page? What about putting videos on YouTube? If you've done anything like this, you're already familiar with placing files on the web. When getting a website online, you need a domain (the location), and the means of moving the files, which is known as FTP.