Dictionarist is a dictionary program which can translate with a single click free of charge. By highlighting any word on your computer, it translates automatically by clicking on the combination of a click on the concerned key and the mouse.
An internet connection is not required; it is fast and supports many languages.

General specifications:
Easy usage with a single click!
Usage without needing internet connection
Compatible with all Windows applications
Pronunciation facility
Multi interface language
Usage in the mood of a title bar
Multi-language support
Extended word database
Clues:
If you wish to learn the definition of a word by using the dictionary in the title bar mood, it displays the meanings of the word in the title bar of the current window without permitting the intervention of other windows.
If you wish to learn the definition of an idiom composed of more than one word highlight it by remaining Ctrl + Mouse pushed.

If you choose the window to be automatically closed, the word window will automatically get hidden when you move the mouse away from the window after learning the definition of the word.
You can increase the size of the word window by pushing on the combination of Ctrl + ?+? and decrease its size by pushing at Ctrl + ?-?.
You can open the word window by pushing the ?F10? button on your keypad and hide it by pressing ?ESC?.
You can also download additional languages to your dictionary from http://download.dictionarist.com