NEW! English Vocabulary profile levels: all words and phrases at CEFR level A1 to B2 are shown with a level indicator, helping you to decide which words to learn first.

NEW! A section on common learner errors at particular CEFR levels helps you to avoid common mistakes in exams.

• More than 35,000 definitions and hundreds of new words
• Definitions are written in clear, simple English.
• Thesaurus boxes help you to expand your vocabulary
• Common learner error boxes, based on learner errors from the Cambridge English corpus, show you the most the most common mistakes and how to correct them.
• Over 1,000 word partner boxes show the important collocations that will help you to produce more natural sounding English.