Dictionary.com for iPhone - Carry a dictionary and thesaurus wherever you go with this easy to use app! View language reference content from trusted sources like Dictionary.com and Thesaurus.com right from your iPhone
VOX Spanish-English & English-Spanish Dictionary (iPhone/iPad) - VOX English-Spanish-English Dictionary is an accurate and complete dictionary for language learning. The dictionary contains about 68 000 words and expressions with abundant usage examples, notes of culture, idiomatic expressions, phrasal verbs and technical terms
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
SlovoEd SlovoEd Deluxe Russian-Spanish & Spanish-Russian dictionary includes the most full and detailed translation articles with usage samples, synonyms and antonyms, references and other important information
Collins COBUILD Intermediate Dictionary (iPhone/iPad) - The Collins Cobuild Intermediate Dictionary is the perfect language tool for English language learners. You will find all the words you need, defined clearly in full sentences
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
Collins English Dictionary and Verbs - Carry a dependable Spanish and English language reference in your pocket with the Collins Pro Spanish-English Translation Dictionary
SlovoEd Deluxe German-Italian & Italian-German dictionary includes the most full and detailed translation articles with usage samples, synonyms and antonyms, references and other important information