Regardless of the number of pages you look at while you're on a site, it's still only one session. However, if someone were to visit and leave a site in the morning, and then return a few hours later, that person would appear as two visits for that day. These are, very simply, the number of pages a person sees on a site. Say you visit Yahoo and click around on ten different pages. This would appear in the log as one unique visitor, one visit and ten page views.
Hits are by far the least meaningful metric of the bunch.
Bear with me. When you visit a page on a web site, you register one hit for the page itself and then an additional hit for every image on that page. Depending on its makeup, a page could be worth one hit or 50. So, dear unique visitor , enjoy your visit here at TNR Online and pay us another visit again soon. Please feel free to view more pages .