Word Lookup! is a free dictionary for word games like Words With Friends or Scrabble.

Use it to resolve a 'challenge' in Scrabble, or to learn new words and their meanings.

Features:
✔ Full 170,000 word dictionary, with words up to 28 letters in length.
✔ Links to Google for definitions (requires Internet access).
✔ Same word list as used in Words With Friends (ENABLE+).
✔ Contains lists of useful words to learn (2 letter words, all vowels, etc).
✔ Free version supported by iAd.

Credits:
© 2010 Hunt IT
Definitions by Google