Is there somewhere I can download complete dictionary databases that will install neatly into the dictionary modules database table?

Ive search all over and have not found anything. I want to populate my dictionary with a lot of words/definitions.

Also, is there a wordbook encyclopedic database that I could download somewhere to do the same thing as the dictionary database?

Also, how do I make the autolinking function in wordbook to work?

Thanks
cheers
tuna