Amazon's Kindle stores the New American Dictionary and uses it for context-sensitive word definitions; some users find this feature disruptive when navigating through the Kindle's pages, as letting the cursor linger over the word can cause a pop-up to obscure the text they were trying to read. Deleting the dictionary is like deleting any other book from your Kindle library.
Archiving the Dictionary
Press the "Home" button.
Scroll through the list of titles until you see "New American Dictionary."
Underline the title with the 5-way controller.
Select "Remove from device." Select "OK. This deletes the dictionary from your Kindle, but it is still available to re-download from your Amazon Library.
Deleting the Dictionary
Log in to your Amazon account with a Web browser.
Click the "My Kindle Library" tab. In the "View" menu, select "Books" and scroll through the list until you find the "New American Dictionary."
Click the "Actions" button. Select "Delete from library" to remove the book from your Kindle Library.
Once you delete a title from your Amazon library, you cannot re-download it again. It is almost always better to just archive the library rather than delete it.