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.
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Up-to-date coverage of todays English, with all words and phrases explained in full sentences
Authentic examples from the Collins Corpus show how English is really used
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Thousands of synonyms, antonyms, collocations and illustrations of key topics
Alternatives for the 50 most-overused words in the visual thesaurus
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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