Convert Default Online Dictionary to Offline in Debian/Ubuntu

Step 1: Type the following command in the gnome-terminal to obtain the dictionary server:

                sudo apt-get install dictd
Step 2: Then to obtain the dictionary definitions in english, i.e. word materials, paste the following command in terminal:
          
                sudo apt-get install dict-gcide


Step 3: To add the thesaurus(optional) in the dictionary paste the following command in the terminal:
        
        sudo apt-get install dict-moby-thesaurus

Converting to local host for Offline Dictionary Access

Step 1. go to the Edit → Preferences
Step 2. Now you have the default dictionary selected. Click the Add button to add the offline dictionary functionality.
Now in the Description add the any name you want to fill. Here it is filled with the “Local Server” and the most importantly fill the Hostname with“127.0.0.1” as shown.
Step 3: Now, all you need is to select the the newly added server (named Local Server here) and then your dictionary is up and running with that of smart thesaurus.

That’s it. We have just made our dictionary good enough, to work even without an internet connection. You can now search for word meanings locally.