Website Stats Counter - Terminology

(Screenshot from WebsiteStatsCounter.com)
Pageload - This is the amount of times a webpage(s) from your website has be loaded into a web browser. This does not tell you how many people are actually visiting your site though. It only shows you how often your webpages are being accessed. This means that 1 person could be clicking refresh 10,000 times or conversely 10,000 people could be loading 1 webpage each.
Click - these are the amount of times a link has been clicked on the webpage(s) being tracked. This is a good indicator of your visitors going from one webpage to another. This is indicitive of “interest” in your webpages.
Unique Visitor - This is an individual person that is visiting your website/webpage. The number of unique visitors gives you a good idea of how many different people are visiting your site. The more unique visitors you have, the better.
Return Visitor - This is a unique visitor that has visitor your website or webpage 2 or more times. This means that he/she really liked your site and came back at a later time. This is good because it shows that your website is a place that they would come back to in the future. Getting the visitors is the first step, retaining them is the second. This is what “Return Visitor” tracks.