This is the world's bestselling advanced learner's dictionary, trusted and recommended by learners of English and their teachers, and used by over 30 million people.

The e-book edition is more up to date and easier to use than any other e-book learner's dictionary of its kind. It includes all the words and usage notes found in the paper edition, as well as extra example sentences and selected illustrations and reference pages. The e-book edition has:

• 183,500 British and American words, phrases and meanings
• 100,000 example sentences, 15,000 more than the paper edition
• British and American pronunciations for all words
• Hundreds of usage notes on synonyms, grammar and usage
• Colour illustrations to help you understand difficult words
• Links within entries to help you move to the right place quickly
• Explanations of grammar codes, for example click on the grammar code '[C]' and see the explanation 'countable noun'
• Reference pages, including on the Oxford 3000Ö keywords (the most important words you need to know in English), sayings and proverbs, and common first names