CEFR C1 English — Vocabulary, Reading
CEFR C1 is advanced English — read literature, write essays, and follow nuanced argument across academic and professional topics.
~8,000 words
700–800 hours
What you'll learn at CEFR C1
~8,000 C1 vocabulary words (cumulative)
Idiomatic expressions, advanced collocations, academic register
Reading literature, academic papers, and editorial content
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CEFR C1 Vocabulary
Browse and mark known every word in the official CEFR C1 list. Filter by what you've seen in real content.
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Import any English article, YouTube video, or book. One-tap word lookup and save vocab in context.
Try the readerFrequently asked questions
How is C1 different from B2?+
C1 adds depth — idioms, register, and the ability to follow nuanced argument. Many native speakers test in the C1 range on standardized exams.
How does C1 compare to China's TEM-4?+
TEM-4 (英语专业四级), required in the second year of an English major, targets roughly 8,000 words — close to the C1 vocabulary benchmark, though the exams aren't formally calibrated against each other.
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