A free C1 English vocabulary course covering about 1,100 advanced words. C1 is the level where you can use English for almost anything, and what remains is range: the less common word that says exactly what you mean, and the phrasal verbs that make English sound natural. Everything here is at CEFR level C1, in British English, and none of it needs an account.
The course does one thing. It is not a grammar course and it does not teach conversation. It gives you the words, with enough context to use them correctly, so that the grammar you already know has more to work with.
The words are split into 32 units. Each unit is built around a topic, so the words in each unit are ones you would naturally use together:
Because the units are grouped by topic, you do not have to work through them in order. Start with the topic you need most and come back to the rest later.
The word list is based on an analysis of spoken and written English, so the course concentrates on the words that come up most often. It is aligned with the Oxford 5000™, the expanded core word list published by Oxford University Press, and was put together with input from English teachers on what learners need at this level.
EnglishLeo is not affiliated with Oxford University Press.
At B2, the aim is to say exactly what you mean. At C1, the aim is to say it the way a fluent speaker would. A full unit on phrasal verbs covers the everyday verbs that learners often avoid, and many entries are less common words that say in one word what would otherwise take several.
Some topics are new at this level, such as attitudes and beliefs, social and religious life, and personal finance. Others come back in more depth: business now includes commerce and services, crime includes punishment, and the body includes movement as well as illness.
Every entry gives the word, its part of speech, a short definition in plain English, and an example sentence showing how the word is used in context.
Each word has audio, so you can hear how it is pronounced. Each unit also has a recording of the whole list, which you can play from start to finish.
Each unit ends with a Test Yourself quiz on that unit’s words. Answers are shown straight away, so you can see what you missed while it is still fresh.
A flashcard module with spaced repetition is being added. It will bring back each word at increasing intervals, just before you are likely to forget it, which is one of the most reliable ways to remember new words in the long term. Like the rest of the course, it will work without an account.
On the translated versions of this site, you can show a translation of each definition and example in your own language, or hide it to test yourself.
If many B2 words are still unfamiliar, start with the B2 vocabulary course instead.
C1 is the last level in this series. If you are preparing for IELTS, TOEFL or PTE, the exam vocabulary course covers the B2 to C1 words those exams test, in American English. All 1,100 of its words are also available as a free PDF download. If you use English at work, the Business English Verbs course covers verbs for business and professional use.
