Is there an offline dictionary?

Question

Are there any off-line dictionaries available?

Answer 1

I would recommend Artha, It is an Offline dictionary, I find it really comprehensive and it also suggests you synonyms of the word you are looking up.
You can download Artha from Ubuntu Software Centre.

Artha is a free cross-platform English thesaurus that works completely off-line and is based on WordNet

Website: http://artha.sourceforge.net

Answer 2

GoldenDict

I suggest GoldenDict a very powerful shell in which you will be able to install a great many dictionaries of various formats. Just for an English explanatory dictionary add goldendict-wordnet option.

To install goldendict and goldendict-wordnet in all currently supported versions of Ubuntu open the terminal and type:

sudo apt install goldendict goldendict-wordnet