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Dictionary & translation 📖

Spot a word you don’t know while studying? You can look it up on the spot.

  1. While studying, tap and hold a word
  2. A dictionary popup appears
  3. Read the meaning and example sentences
  4. Hit “Save” to add it to your Library

Go to Settings → “Select Dictionary” to pick from several dictionaries. Your choice is saved on the device and stays the same the next time you open the app.


The translation language for video subtitles follows your app interface language. There’s no separate setting — one option controls both UI and translation.

More details → App language settings

Korean / Japanese / English translations are written by humans by default. Some other languages may be machine-translated, in which case the app shows this message:

“This video’s translations are currently being provided through machine translation.”


When you tap and hold a word, an action menu appears:

  • 📖 Look up in dictionary — see the meaning
  • 💾 Save — add it to your Library → Saving
  • 📋 Copy — paste into another app (notes, etc.)
  • 🌐 Translate — translate just that word

“Oh, that’s what it means” — that level of attention is enough. Keep studying. Once you bump into the same word in different videos, it’ll stick on its own. → Words in your Library

Memorizing only the meaning leads to “translator-style English.” Study the example sentences alongside, so you also pick up the typical context.

Once you’re comfortable, switch the interface language to English. Subtitle translations follow along, giving you an “English-to-English dictionary” learning style.