Thank you for your kind attention.
I have several solutions in mind. It should be dynamic, in action, and not didactic like a dictionary.
I have in mind a kind of double vision, like the night vision of Splinter Cell or the vision of the eagle in Assassin's Creed. By keeping a key pressed, we would have temporary access to the written words and possibly translated into several languages. Technically, it would take time, but it seems possible to me.
Otherwise I made a picture book, with the words and pictures connected by arrows.
I don't see a lot of ways to make a dictionary fun, do you ?