Cobuild Advanced Learner's Dictionary

For upper-intermediate and advanced learners of English

You can trust Collins COBUILD

All of our explanations, examples and special features are based on our 4.5-billion-word database of the English language, the Collins Corpus, which means you can trust COBUILD to help you speak and write accurate and up-to-date English. The corpus is updated every month and has been at the heart of Collins COBUILD for over 25 years.

Be confident in English

• Up-to-date coverage of today’s English, with all words and phrases explained in full sentences
• Authentic examples from the Collins Corpus show how English is really used

Expand your vocabulary

• Thousands of synonyms, antonyms, collocations and illustrations of key topics
• Alternatives for the 50 most-overused words in the visual thesaurus
• Improve your fluency
• The most frequent words are clearly labelled, showing which words to learn first
• Information on usage and common grammatical patterns illustrate how the English language works
• CEFR B2+
• Ideal for students preparing for IELTS, TOEFL® and Cambridge English: First, Advanced and Proficiency.

Use the COBUILD Learner’s Dictionary at www.collinsdictionary.com/cobuild