Etymological Flashcards APK

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I intend this to be an English vocabulary building application. And I intend the main users to be Japanese people. In this app, users can build English vocabulary, linking words freely via etymology and semantics. And at the same time, users can brush up their Japanese vocabulary as well. So, this app is effective for the students of Japanese language other than Japanese students of English. This app is something like a so-called adventure-game. Using mainly etymological and semantical information as weapons, users can travel freely in the world of English vocabulary. This is very exciting intellectually.
Users can take a quiz so that they can interact with this app more effectively. Its main function is to find out where they can start their vocabulary-building adventure. They can use it to know their level of achievement as well.