Reviewers say The best freeware thesaurus out there today is Mobysaurus. ... This program is light in size but heavy on features. - Lockergnome.com  Full Review The software is just great whenever you are having difficulties in finding the right synonym. The application is super-easy to use and the results are accurate. - Softpedia.com  Full Review Read user quotes and reviews

New!  Try our free and handy online thesaurus - now with live suggest and dictionary!

Mobysaurus Thesaurus is a comprehensive, feature-rich, easy-to-use English thesaurus for Windows.

In addition to numerous built-in powerful features (usually seen only in commercial products), it offers some major unique benefits that no other thesaurus product (software or otherwise) does, including a huge database of 2.5 million synonyms, Find Synonymous Headwords and Suggest Headwords, that make this free thesaurus software the right tool for you to find the right words at the right time.

Screenshots

Click on any of the images below to enlarge

Features

• Over 30,000 headwords and 2,500,000 synonyms
• Fast and full-featured wildcard search
• Hotkey support (look up words within most programs, e.g., Microsoft Word)
• Cross-referencing
• Display related headwords
• Fast find synonymous headwords with structural view, ideal for serious word hunters  (major unique feature)
• Headword suggestion and full-text search, saves you troubles and hassles figuring out the "most suitable" headwords  (major unique feature)
• WordWeb support
• Tabbed interface
• Full clipboard/print support
• Extra online references
• Save and manage search history and favorites across sessions
• Safe search
• Suggest-as-you-type
• Free

Comprehensive

The thesaurus is powered by the latest version of Moby Thesaurus (compiled by Grady Ward), which contains a total of over 2.5 million synonyms and related terms, and is presumably the largest and most comprehensive English thesaurus data source publicly available to date.

Quick and Uniquely Powerful

• Recall the last time you scoured your brain for that word on the tip of your tongue but unfortunately, not on the top of your mind.
• All too often we would have no exact idea as to whether we started with the most suitable headwords which contained the synonyms that we were looking for.
• It's also common for words that we have in mind to simply not show up as headwords (main entries) in thesauruses.

We know it can be very frustrating at times!

Mobysaurus Thesaurus is here with solutions to these problems: a large selection of synonyms for each headword (main entry), displaying related headwords, suggest-as-you-type, finding synonymous headwords, cross-referencing, headword suggestion, etc.

Some of the major user benefits:

• No need to turn pages
• No need to think of multiple synonyms to look up individually
• No need to spend time looking for the most suitable headword/main entry
• No need to care about whether the word you just have in mind is likely to be a headword/main entry
• Great replacement for all other free and commercial thesauruses (paper, electronic and software) combined, and it does not even cost a red cent.

To see this thesaurus tool in action, view screenshots and read more.

Get Instant Results, Locally

It's no longer necessary for you to get online, open up web browser, type in URLs, wait for pages to load, view advertisements, and occasionally expose the system to spyware/adware threats. Why have to buy and use conventional paper/electronic thesauruses any more? Save both time and money with this professional and free software.

To find synonyms without installing this program, use our unabridged online version of this thesaurus.

This free thesaurus will help you

• Find the words you need to express your idea more effectively, descriptively and more interestingly
• Avoid repeating the same words monotonously
• Avoid clich s (overused expressions)
• Recall the word that is on the tip of your tongue
• Broaden vocabulary through trying out new words and phrases
• Communicate with greater confidence
• Find the word that suits the genre (type of writing, e.g. a letter), purpose, intended audience and context of what you are writing
• Craft more effective queries for online search

Download

Download Mobysaurus Thesaurus Version 1.0.55 Date Jan 30th, 2007 Size 4,818KB License Freeware/Donationware OS Windows 98, Me, NT, 2000, XP, 2003, with .NET Framework 2.0. Optimized for Windows Vista   This program is free of spyware, adware, viruses, trojans, and any other kind of malware. It does not contain/install any 3rd-party software.

Support

Have questions? The author is happy to help with any question you have concerning this program, any time. Your questions will not go into a black hole, instead they will be answered promptly by the same person who designed the website and coded this software. Click on the little bird image below to contact the author directly, or post your questions on our public forum for a community response.

Please check back regularly for new releases as we update this thesaurus every once in a while. :)