This app was mentioned in 7 comments, with an average of 3.57 upvotes
Word Nest is an offline english dictionary accessible from a floating bubble which runs on top of your other apps. The concept is similar to chatheads used by Facebook messenger. You can look up word definitions while reading PDFs/e-books or while browsing the internet. Screenshots
Features:
There would be nothing so well integrated - Amazon has their own dictionary built-in using proprietary software so there's no API to extend it from other apps as far as I know.
For a similar experience you could still try something like https://play.google.com/store/apps/details?id=com.mb14.wordnest&hl=en&gl=US that works as a system-wide dictionary. You just need to select and copy the text, then you'll see a popup with the dictionary option.
HoverDict - System-wide floating dictionary
HoverDict is an English dictionary accessible from a floating bubble which runs on top of your other apps. This can come in handy if you read a lot of e-books or articles and want to look up word meanings without switching to another app.
Features:
Premium version features:
Note: I have a few promo codes for upgrading to the premium version. PM me if you're interested!
HoverDict is a system-wide floating english dictionary for android. With this app, you can look up word definitions while reading PDFs/e-books while browsing the internet, without having to switch apps.
Here are some of it's features:
This one is always great - HoverDict Dictionary
WordNest does what you're looking for. Here is the link: https://play.google.com/store/apps/details?id=com.mb14.wordnest