To make learning about the Visual Thesaurus easier, it has a "context sensitive" help function. When you turn the help function on, you can roll your mouse over any area of the screen you would like to learn more about, and after a second or two, a "help tip" will appear that explains that function. To turn the help function on, press the "HELP" button on the toolbar. When the help function is on, the indicator on the right side of the "HELP" button will be next to "ON." To turn the help function off again, press the button again, returning the indicator to the "off" position.