If you have a Kindle, you must have used the dictionaries at one point. It’s when you select a word (by either moving the cursor to it or simple holding your finger on it for a second) and the device shows you the meaning from a dictionary in the book’s language. Where do these definitions come from and why do they work for all languages?
I recently picked up reading again and shortly after I read my first two books (technically I wasn’t quite through with my second book, though), I got the idea I might need a Kindle. My wife has owned one since I gave her one about a year ago and she was very positive about it.