This dictionary and thesaurus app looks pretty decent. It was just launched today. And best of all, it’s free!
It doesn’t look like it is ad supported either, so thumbs up to that.
One of the best free dictionaries available that also includes a thesaurus.
Easily look up words to find their definitions, and also get synonyms, antonyms, related words, and similar words from the thesaurus.
Get the free download from Blackberry App World.