Longman dictionaries are compiled using the Longman Corpus Network a huge database of 430 million words of spoken and written English collected from both British and American English sources. They are easy to use and easy to understand: they are written using a limited vocabulary of just 2000 words - the Longman Defining Vocabulary - ensuring that they all have clear and understandable definitions.

The 5th edition of this best-selling dictionary helps intermediate students improve their writing with the Collocations feature and offers extra support for those studying other subjects in English. The integrated Thesaurus helps students build their vocabulary. The online dictionary includes innovative functionality to facilitate customizable teaching and learning, and a wealth of customizable practice so that users focus on the words that they want to learn. Students preparing for TOEFL® can also practice their exam skills using the interactive exercises.