[iPhone God App] It was found using the Concise Oxford English Dictionary with Audio actually

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The Concise Oxford English Dictionary is the most popular dictionary of its kind around the world and is noted for its clear, concise definitions as well as its comprehensive and authoritative coverage of the vocabulary of the English-speaking world. The dictionary app includes over 50,000 audio pronunciations of both common and rare words, available in both British & American voice versions, including words with controversial pronunciation or with variant pronunciations.

*Over 240,000 words, phrases, and definitions, covering technical and scientific vocabulary as well as English from around the world
*Hundreds of new words and phrases, based on the latest research from the Oxford English Corpus
*Hundreds of usage notes on tricky vocabulary and grammar usage
*50,000 audio pronunciations

A SEARCH TOOL

Featuring search autocomplete to help you find words quickly by displaying predictions similar to the terms you're typing. You also get enhanced search extras including:

• A quick search of words while you type
• A 'fuzzy filter' when you are not sure of the correct spelling of a word
• A 'keyword' search for finding key words within compound words
• A wild card search function (*) which can replace a letter or entire parts of a word

A LEARNING TOOL

Including a number of features that help you further enhance your vocabulary:

• A 'Favorites' feature to create custom folders with lists of words from the extensive library, including cross-curriculum words
• History list to help you easily review looked-up words
• Discover more about language with the special language notes
• See words in context with example sentences

A mobile dictionary application from MobiSystems with content from Oxford University Press.