Author(s): Oxford Dictionaries Staff (Editor); Albert S. Hornby (Editor); Michael Ashby (Editor); Victoria Bull (Editor); Ben Francis (Editor); Dilys Parkinson (Editor); Patrick Phillips (Editor); Suzanne Webb (Editor); Diana Lea (Editor); Joanna Turnbull (Editor)

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The Oxford Advanced Learner's Dictionary, or OALD, is recommended by teachers and students because it defines words in language students understand, gives useful example sentences, and includes the help learners need to expand their vocabulary to 7500+ words. It has sold over 35 million copies worldwide and is the world's best-selling advanced learner's dictionary.The new 8th edition with Oxford iWriter, an interactive tutor to improve writing skills, offers 8 new reasons to choose OALD.