In Kindle Touch you touch and hold a word for a second or two but that's beside my point. I want the ability to tap a word or move the caret in the quick defini

In Kindle Touch you touch and hold a word for a second or two but that's beside my point. I want the ability to tap a word or move the caret in the quick definition popover to look up another word within the same interface without having to switch to the full dictionary.