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.