I freely admit that I love word games. Scrabble is probably my favorite (and if you’re on facebook, feel free to join me in a game – scrabble is about the only good thing I think facebook has - but make sure you let me know who you are when you "friend" me!).
Anyway, a word game I found not long ago is Free Rice and it is addictive and also is a way of donating to charity. You correctly define words and rice is donated through the UN World Food Program. That’s a game worth playing!