Did you know?
Students often ask me (especially when they visit as guest in my Techlab, and I am busy trying to do something for myself) for the meaning or spelling of a word, or need help understanding a word or phrase.
As long as you are using a native Mac application (such as Pages, Safari), you can press <ctrl> <cmd><d> and of you go; you get this wonderful little pop-up window that explains a lot. Keep moving your mouse (while holding the keys), and you get to see the neighboring words as well.
You can also click <More> and open the full Dictionary Window, showing more options.
