Google's search engine can find pictures, videos, news, Usenet newsgroups, and things to buy online. By June 2004, Google had 4.28 billion web pages on its database, 880 million pictures and 845 million Usenet messages — six billion things. Google's American website has an Alexa rank of 1, meaning it is the most widely visited website in the world. It is so widely known that people sometimes use the word "google" as a verb that means "to search for something on Google". Because more than half of people on the web use it, "google" has also been used to mean "to search the web".