Dictionary Universal is a powerful and comprehensive educational and reference app that provides users with the ability to look up definitions, meanings, and translations of words and phrases in over 20 languages. It is designed to be an easy-to-use, comprehensive source of information for language learners, linguists, and anyone looking for quick access to accurate translations and definitions for words and phrases. This app features an extensive, up-to-date word database with more than 1.5 million entries from English and 20 other languages, including Spanish, French, German, Italian, Portuguese, Dutch, Swedish, and more. It also includes audio pronunciation, example sentences, verb conjugation, and synonyms. In addition, Dictionary Universal allows users to create personalized flashcards to help them study and retain vocabulary in any language. Furthermore, the app provides users with access to an interactive dictionary with translations, definitions, and example sentences in a variety of languages.
GoldenDict
StarDict
MDict
QStarDict
Lexpanse
Dicty
Discontinued The project seems to be no longer updated. Last version, 3.0.6, released in January 2015, but can still be downloaded from SourceForge.