gooDict is a simple dictionary application. It contains Japanese, English-Japanese and Japanese-English dictionaries. It must be useful for people who are studying Japanese.
It allows you to look up dictionary through "Service" function from other Cocoa application. And gooDict can automatically look up the selection of other Cocoa application at background. (Not available in Safari) It also can automatically look up the content of pasteboard. So if you find an unknown word, you just select or copy that word and gooDict shows you the meaning of that word.
gooDict uses goo as a dictionary.
One World Dictionary by Ascendo is a leading multilingual reference tool for Apple desktops.
InstantTranslate makes it really easy to translate a selection of text in the application you are working in from one language to another language.