Are you Mac OS X user and looking for dictionary, then TranslateIt has the solution for your problem. TranslateIt! for Mac - is the unique multilingual dictionary for Macintosh users. This unique dictionary hold the capacity to translate any word from any  language. But how? This Mac software works in an innovative way. Whenever you put your mouse pointer on any word (in any Cocoa Application), TranslateIt! instantly shows the translation result in a pop-up window. Isn’t it amazing! For me, it is a new kind of experience. Now, lets check out some of its feature at a glance,

• TranslateIt! supports English, German and Russian morphology.
• Also, there are lots of free dictionaries for different languages.
• TranslateIt! has built-in DictBuilder, which lets you to create custom dictionaries.
• In TranslateIt! there is a game called, Words Quiz which lets you to learn new words.
• Customizable dictionary display options.
• Multilingual user interface.

and lots of other unique features bundled within this software.

But, Windows users need not to worry, because TranslateIt! is available for Microsoft Windows users also. You will find it at, http://gettranslateit.com/. TranslateIt! Windows variant has the capacity to translate words in Internet Explorer, Outlook Express, Opera, Firefox, MS Word, ICQ, etc.

So, for more detail on TranslateIt! contextual dictionary you can visit here!