Updated Aug 29, 2026 · v28.0
A vocabulary book for memorizing words by testing your pronunciation like a game
We have included all essential English vocabulary for each level, from absolute beginners to basics, fundamentals, CSAT basics and fundamentals, TOEIC, and IELTS. In particular, the CSAT basic course is designed to allow you to memorize example sentences alongside the words, enabling you to naturally utilize the learned vocabulary in actual English conversation. The best method for memorizing words, discovered while teaching countless students, is "endless testing and repetition." This app allows you to naturally memorize words by testing them one by one in an enjoyable way, just like playing a game. A scientific repetition learning system automatically analyzes incorrect answers and continues to test you repeatedly until you have completely memorized them. As you have fun testing, you will find that the English words stay in your mind for a long time before you know it.
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