1. A method of providing to a user a dictionary of multi-touch gestures, each of the gestures comprising a chord and a motion associated with the chord, the method comprising: identifying a chord presented to a multi-touch interface by the user to begin a gesture, the identified chord comprising a combination of hand parts associated with the gesture but distinct from motion associated with the identified chord to complete the gesture; and in response to the identifying of the chord presented to begin the gesture, and prior to identifying motion associated with the identified chord to complete the gesture, displaying a dictionary entry for the identified chord, the displayed dictionary entry comprising a visual depiction of multiple motions associated with the identified chord and, for each of the multiple motions associated with the identified chord, a meaning of a gesture comprising the identified chord and the corresponding motion.