[_dmn7]

My somewhat similar project VocabSieve [1] is intended to make lookups and making Anki flashcards very easy. Among other things, you can import highlighted words from ereaders and make Anki cards out of them automatically. I used it for Russian for the entire development process, so you can be sure it works well for that.

[1] https://github.com/FreeLanguageTools/vocabsieve