The tenth edition of the Collins COBUILD Advanced Learner's Dictionary has been revised and updated to include detailed coverage of today's English in a clear, attractive format. Ideal for upper intermediate and advanced learners of English, this dictionary covers all the words, phrases, and idioms that students need to master in order to speak and write effective English. New to this edition is the inclusion of CEFR levels, helping learners to focus on the words that are most important.

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Practical English Usage has sold over 2 million copies worldwide. Now revised and updated for the fourth edition, it answers the questions that teachers and learners ask about English grammar and vocabulary with clear, corpus-informed explanations and examples.