We use the term web root to describe the location on your web server that is at the highest level available to a web browser. For example, if your homepage is http://www.YourWebSite.com/index.htm, then the folder that "index.htm" is within is considered your web root. When viewing this folder using an FTP client, the name varies depending on the web server software your server is running. Some common names for this folder are:
www
htdocs
public_html
web