This is a simple add on.
We have fictional names, terms and geographic locations in our novels. A simple tool to create a dictionary definition for terms in mobi/epub files. So if our readers forget what an in-world term is, all they need to do is highlight it and bam they get a definition.
For example, if I have a character named “John,” and I highlight it on the kindle, it should come up with “John: Crown Prince of Utopia. Son of Jack. Father to Mark.”
Or if I have a place called “Granville,” and I highlight it on the kindle, it should come up with “Granville: Capital of the Brick Empire.”
I hope I make sense.