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Artha ~ The Open Thesaurus

Artha ~ The Open Thesaurus. Screenshots

Artha is a free cross-platform English thesaurus that works completely off-line and is based on WordNet. Stable releases for download are currently available for GNU/Linux, Microsoft Windows and Windows Phone 7; it is tested on major Desktop Environments like GNOME, KDE, Xfce, etc and on Microsoft Windows XP, Vista, 7 and 8. Artha is released under the GNU General Public Licence version 2; hence you are free to copy/redistribute it.

What's New!

Artha 1.0.3 is out now! Download it (or install it via the PPA [Debian based OSs only]).

The most recent release of Artha 1.0.3's highlights:

Artha now has a PPA for Debian and its derivatives!

Sneak peaks of the next release:

For latest discussions and to give suggestions please visit this page in the Ubuntu Forums.


Artha is a handy thesaurus that focuses on high usability, without trading off simplicity and ease of use. It has the following distinct features that increases its usability:

For a given word, the possible relatives shown by Artha includes Synonyms, Antonyms, Derivatives, Pertainyms (Related Noun/Verb), Attributes, Similar Terms, Domain Terms, Entails (what verb entails doing), Causes (what a verb causes to), Hypernyms (is a kind of), Hyponyms (kinds), Holonyms (is a part of) and Meronyms (parts). To know more about each category of relatives, click on it for an explanation and example. Once launched, Artha sits on the system tray and looks for the pre-set hot key combination press. You can select some text on any window, and call Artha by pressing the key combo. Depending upon the option set, Artha with either pop-up with the word looked-up or will show a passive notification of the most important definition of the searched term, from the system tray.

Get Artha

See the Download page to get Artha for your platform.


Artha is written in pure C using the GTK+ widget kit and GLib libraries, making it cross-desktop and cross-platform. It uses WordNet for its database corpus, libnotify for notifications and Enchant for spelling suggestions. It may be used as a advanced replacement for the proprietary software WordWeb Pro in both Windows and GNU/Linux environments. Currently different flavours of GNU/Linux and Microsoft Windows XP and upwards are supported. Porting to other UNIX-like systems (BSD, Solaris, etc.) and Apple Mac OS X will commence soon.

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