I asked Claude to build a Word Wise plugin. I know it's not the same as on Kindle, but Amazon can afford to create a curated dictionary, and they can adjust hints for each book to get a better context. BTW, if you are running it ok Kindle, the plugin will automatically find and use the Kindle dictionary; for other platforms, it will use the generated one.
https://github.com/asxelot/wordwise.koplugin
https://github.com/asxelot/wordwise.koplugin
