Ultralingua is an educational and reference application designed to help you learn and improve your language skills. It provides full translations, conjugations, and declensions for over 20 languages, including English, Spanish, French, German, Italian, Portuguese, Dutch, Swedish, Finnish, and more. It also includes an extensive dictionary with detailed definitions and examples. You can even use the audio pronunciation feature to help you learn how to correctly pronounce words. Ultralingua also includes a verb conjugator and declension tool, which can help you learn the various forms of verbs and nouns in many languages. The app also includes a language-learning game, which can help you practice and improve your language skills. Ultralingua is available on iOS and Android devices, as well as the web.
Discontinued The project seems to be no longer updated.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.
Google Translate
GoldenDict
Wiktionary
Dictionary.com
Lingoes
Google Dictionary
WordReference
Linguee
Merriam-Webster
StarDict
dict.cc
S3.Google Translator
The Free Dictionary
Reference.com
Mate Translate
Wordnik
Lion (LEO dictionary)
ImTranslator
Glosbe
Apple Dictionary
Discontinued The program is no longer updated. The latest version, v2.9.2, released in August 2014, can still be downloaded from the official website.