Word Lookup! - Free Dictionary for Words With Friends 2.1

the author of this app says:

Word Lookup! is a Free Dictionary and Anagram Finder for word games like Words With Friends or SCRABBLE®.
Use it to resolve a 'challenge', improve your game, and learn new words and their meanings.

Features:

Full 170,000 word dictionary, with words up to 28 letters in length.
Fast - searches as you type.
Anagram Finder - enter up to 7 letters and it will find all valid words.
Links to the web for definitions (requires Internet access).
Same word list as used in Words With Friends (ENABLE+).
Lists of useful words to learn - 2 letter words, Q not followed by U, All vowels, All consonants.
Free version supported by iAd - to remove Ads and enable additional features, please check out Word Lookup Pro.

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Some user feedback:

"Word Lookup is easy to navigate. I now also use it as my everyday dictionary. Well done." - A.C.
"Great vocabulary builder! Helps when you have a mind block -- without cheating!" - R.V.
"It's great! Definitely improved my game!" - S.R.

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SCRABBLE® is a registered trademark of Hasbro, Inc.

What's New in version 2.1

V2.1:
✔ Bug fix for crashes on startup in V2.0 on older iOS 3 devices
✔ Points score now displayed in word lists

V2.0:
** Major update **
✔ NEW Anagram Finder feature - enter up to 7 letters, and it will find all words (and sub-words) containing those letters.
✔ Words With Friends points score displayed in the Anagram Finder.
✔ More in-line word definitions.
✔ Dictionary update - added qadi, zen, ahi, etc.
✔ Improved graphics and user interface.
✔ To remove Ads and upgrade to additional features, Word Lookup Pro is now available for purchase on the App Store.

Requirements

Requires iOS 3.0 or later