I am in badly need of a good off-line dictionary that has pronunciation support. I mean I can hear the pronunciation of the word I search with it's meaning and others. Is there any for Ubuntu?
Goldendict is the most customizable dictionary on Ubuntu. It supports audio output for pronunciations, but you will have to supply it with a dictionary that includes these audio samples. I don't know of any free ones that have this functionality and I don't have enough free time on my hands to search for one right now).
You might find some more information on the GoldenDict forums.