Write down only the words you don't know in a notebook. Do not write the English next to it yet. Wait 24 hours. If you still don't know it, write the meaning. This forces deep recall.

But buying a physical dictionary is expensive, and app subscriptions add up. That is why every learner is searching for the holy grail: .

If you are learning Korean, you have likely heard of the "magic number" 6000.

Why 6000? Research suggests that knowing the 6,000 most common words allows you to understand roughly 95% of everyday conversations, news articles, and TV shows (like your favorite K-dramas). You stop translating in your head and start understanding .