Lingual is a new app on Cydia which allows you to translate from one language to another. Taking advantage from Siri, Lingual can translate word or phrase in over 30 languages by simply using your voice.
To use Lingual, you can use this command: “What is Hello how are you in Spanish?” then Siri will translate into Spanish for you.
Here are the supported languages: Arabic, Czech, Danish, German, Estonian, Finnish, French, German, Greek, Hebrew, Haitian, Hungarian, Indonesian, Italian, Japanese, Korean, Lithuanian, Norwegian, Polish, Portuguese, Romanian, Spanish, Russian, Slovak, Slovenian, Swedish, Latvian, Thai, Turkish, Ukrainian, Vietnamese and Chinese (simplified and traditional).
The repo add source of Lingual is BigBoss which is available as default on Cydia already.