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 English speakers looking to rapidly expand their vocab and learn Čeština 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
15,770 sentences
Play 15,770 sentences in random order.
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Fluency Fast Track
8,497 sentences
Play a randomly selected sentence for each unique missing word in order of difficulty.
8,497 sentences means you'll learn 8,497 unique words.
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  • Grouped by Difficulty
    11 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 Čeština. 1,000 Most Common means the most difficult word is one of the 500-1,000 most common words in Čeština, etc.
  • Learn the 100 Most Common words in Czech
    70 sentences
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  • Learn the 500 Most Common words in Czech
    851 sentences
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  • Learn the 1,000 Most Common words in Czech
    1,102 sentences
    Play >
  • Learn the 2,000 Most Common words in Czech
    1,648 sentences
    Play >
  • Learn the 3,000 Most Common words in Czech
    1,170 sentences
    Play >
  • Learn the 4,000 Most Common words in Czech
    942 sentences
    Play >
  • Learn the 5,000 Most Common words in Czech
    823 sentences
    Play >
  • Learn the 10,000 Most Common words in Czech
    2,351 sentences
    Play >
  • Learn the 20,000 Most Common words in Czech
    2,096 sentences
    Play >
  • Learn the 50,000 Most Common words in Czech
    2,150 sentences
    Play >
  • >50,000 Most Common
    2,180 sentences
    Play >