More than 55 words have been added to the new Collins COBUILD Illustrated Intermediate Dictionary of English. The new Visual Thesaurus helps learners develop fluency by providing alternatives to the 50 most over-used words in English. The new, free mobile app for the iPhone, Android, and mobile web browsers will allow you to access concise definitions and examples, and hear pronounciation quickly. For more details visit mobile.heinle.com. All of our explanations, examples, and special features are based on our constantly updated 4.5 billion-word database of today's English language, the Collins Corpus. This means that you can trust Collins COBUILD to help you speak and write accurate and up-to-date English.