August 19, 2010 Cindy O'Neal
It's all in the toggle switch:
Move the 5-way switch up, down, left or right to move a cursor around on an open page in anything you are reading on the kindle. When you have it blinking directly to the left of a word you will see the beginning of a definition for that word. To view the full definition, press the Return key on the keyboard. When you are finished viewing the full definition, press the Back button on your Kindle.
I love being able to look up words with the Kindle right in the middle of a book... sure beats scrounging for a paper dictionary, or making a bee line for the computer and an Internet connection. He's got the whole world in HIS hands, and you have a nice little chunk of it in yours with your Kindle!