Easywords - This application was originally developed to help GRE test taker learn new words for the verbal section. It includes a searchable list of about 1200 common GRE words and their explanation, and a game to practice these words.
It is well suited not only for GRE preparation, but to learn difficult English words in an intercative and pleasant way using the mobile device. Last but not least it comes in handy as a dictionary since you don't need to search for common words anyway.
Jumble Words Jumble words is the best example of fun and learn available on App stores now
Easy words Easy words - I wrote this application when I got my K750i to experiment with java mobile development. As I was preparing for the GRE I thought something that would help me learn difficult English words frequently appearing in that test might be a good start. At first I wrote a simple dictionary letting the user search and browse about 1200 words. Later I included a cute game