New answers tagged internationalization
This site has a number of extra dictionaries: http://clasquin-johnson.co.za/michel/mac-os-x-dictionaries/index.html and this article provides links for Hebrew/English and English/Hebrew http://blog.jle.vi/post/72464439746/get-the-look-up-dictionary-feature-in-os-x-to-work
Three-finger tap lookup is enabled by Dictionary.app. Dictionary -> Preferences will enable you to activate more built-in dictionaries. For more on adding dictionaries to Dictionary.app, check out this article which also points out how to download and install third-party dictionaries.
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