The WordNet Dictionary and Thesaurus is a large lexical database of English with up to 140,000 entries and more than 1.4 million words, developed by the Cognitive Science Laboratory at Princeton University
Vox Comprehensive Spanish Dictionary and Verbs - The most comprehensive Spanish dictionary available from Vox meets the most powerful dictionary interface on the iPhone and iPod touch in this application from Ultralingua.
Vox is one of the best sources for Spanish language data in the world, made even more useful with the functionality Ultralingua provides
Duden – German explanatory dictionary is the most comprehensive German explanatory dictionary in one volume. It includes not only up-to-the-minute German vocabulary, but also covers its dialects and its variety in Austria and Switzerland. Detailed entries are devoted to the technical terms, professionalisms, jargon, and slang
Lexisgoo English Dictionary & Thesaurus (iPhone) - Lexisgoo Speaking English Dictionary & Thesaurus contains 215,000 entries, 3.7 million words and 4,140 idioms. Easy user interface, simple search functionality and an enhanced speaking function make learning the English vocabulary easier than ever
Van Dale Dutch explanatory dictionary gives you clear definitions and articles with practical examples of usage, offered in an easy to use and powerful application.
The dictionary database contains 31000 entries, especially selected for frequency of use.
· No Internet connection required: simply download the dictionary to your iPhone/iPod touch
Audio Cambridge Dictionary of American English Based on the world's largest corpus of American English, the Cambridge Dictionary of American English provides up-to-date vocabulary, easy-to-understand definitions, helpful usage notes, and examples that show how English is really used. The second edition offers advanced search features and a thesaurus
The Cambridge School Dictionary is the perfect study companion for students studying other subjects through English. It includes vocabulary from all the main CLIL and International GCSE topics - from biology to economics and from IT to literature - to give you the confidence and support you need to learn in English, whatever the subject
Collins English Dictionary Unabridged (iPhone/iPad) - Search over 500,000 English words, references and examples in this 30th anniversary edition of the Collins’ flagship dictionary. Collins English Dictionary 2010 Complete and Unabridged is not only comprehensive and authoritative, but also offers outstanding coverage of world, regional and dialect English