Device used so that everyone knows what everyone else is saying. Solves the TowerOfBabel problem.

''-- from StarTrek''

See "BabelFish" for DouglasAdams' implementation.

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Less ambitious translators: WikiTranslator, PythonTranslator
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Closest I have found to an online UniversalTranslator goes to and from - translations in Spanish, French, German, Dutch, Russian, Italian, Portuguese, Greek, Chinese Simplified, Chinese Traditional, Japanese and Korean
http://www.worldlingo.com/products_services/worldlingo_translator.html