Why is the "Word of the Day" screensaver giving me false information?
According to this discussion it is supposed to open the "Dictionary" app. However, according to that discussion doesn't seem to work if the screensaver is set to require a password.

I have not tried on MacOS X 10.8, but on 10.9 it is no longer possible to disable the password of the screensaver and only set the time after which the screensaver activates. So it seems that it is no longer supposed to work and it is a sentence they forgot.