Clozemaster is a game to learn language in context. It shows you a sentence missing the most difficult word, and the challenge is to fill in the correct word from context. It's the ideal resource for Čeština speakers looking to rapidly expand their vocab and learn English faster.

Choose the mode you'd like to play below, sign up or login to track your progress, or check out all the other languages available on Clozemaster.

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Random
7,474 sentences
Play 7,474 sentences in random order.
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Fluency Fast Track
2,915 sentences
Play a randomly selected sentence for each unique missing word in order of difficulty.
2,915 sentences means you'll learn 2,915 unique words.
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  • Grouped by Difficulty
    12 groupings
    Play sentences grouped by the difficulty level of the missing word.
    500 Most Common means the most difficult word in the sentence is one of the 100-500 most common words in English. 1,000 Most Common means the most difficult word is one of the 500-1,000 most common words in English, etc.
  • Learn the 100 Most Common words in English
    133 sentences
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  • Learn the 500 Most Common words in English
    953 sentences
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  • Learn the 1,000 Most Common words in English
    830 sentences
    Play >
  • Learn the 2,000 Most Common words in English
    991 sentences
    Play >
  • Learn the 3,000 Most Common words in English
    457 sentences
    Play >
  • Learn the 4,000 Most Common words in English
    331 sentences
    Play >
  • Learn the 5,000 Most Common words in English
    224 sentences
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  • Learn the 10,000 Most Common words in English
    664 sentences
    Play >
  • Learn the 20,000 Most Common words in English
    396 sentences
    Play >
  • Learn the 50,000 Most Common words in English
    219 sentences
    Play >
  • Learn the >50,000 Most Common words in English
    75 sentences
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  • Unknowns
    2,201 sentences
    Play >