Oxford Russian Dictionary (iPhone/iPad) - Offering a comprehensive look at both languages, it includes over 185,000 words and phrases and 290,000 translations
Collins French-English Dictionary and Verbs - Carry a dependable French and English language reference in your pocket with the Collins Pro French-English Translation Dictionary
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
Merriam-Webster's Spanish-English & English-Spanish Dictionary (iPhone/iPad) - Merriam-Webster's Spanish-English & English-Spanish dictionary is a bilingual, bidirectional guide to Spanish and American English with extensive coverage of Latin-American Spanish
Merriam-Webster's French-English & English-French Dictionary (iPhone/iPad) - Merriam-Webster's French-English & English-French dictionary is a bilingual, bidirectional guide to French and North American English with extensive coverage of Canadian French
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
Oxford Thesaurus of English - Based on the ongoing research of Oxford Dictionaries, this edition of the Oxford Thesaurus of English includes new and up-to-date synonyms and senses, and offers coverage of more alternative words than any other A-Z thesaurus
Harrap's English-French & French-English Dictionary (iPhone) - brings you over 375,000 words and phrases, making it the most comprehensive single-volume description of French and English today
Harrap's French-Spanish & Spanish-French Dictionary (iPhone) - gives you vast and in-depth coverage of French and Spanish, including all the newest words to enter the language, specialist terms from areas such as technology, business and science, idioms, slang, regional variants, and the language of literature
