The Quiz dictionary of SAT words combines games with a dictionary. The games are used to test your knowledge of words that are commonly considered difficult and measure just how difficult they really are. In addition there is a subset of a dictionary full of the tough words for exploring, and preparing for exams such as the SAT, ACT or GRE.
By playing we are also attempting to build a list of the toughest words, that are in somewhat common usage yet are often misunderstood.
In addition to the game, this app should also work as a subset of a full dictionary, specifically for difficult word, not in spelling as much as understanding the meaning.