CEFR C1 · Advanced

CEFR C1 English — Vocabulary, Reading

CEFR C1 is advanced English — read literature, write essays, and follow nuanced argument across academic and professional topics.

Vocabulary

~8,000 words

Est. time

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

Study tools inside InputDojo

CEFR C1 Vocabulary

Browse and mark known every word in the official CEFR C1 list. Filter by what you've seen in real content.

Read native content

Import any English article, YouTube video, or book. One-tap word lookup and save vocab in context.

Frequently 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.

Other CEFR levels

CEFR A1CEFR A2CEFR B1CEFR B2CEFR C2

Ready to start CEFR C1?

Join thousands of learners studying English through real native content.