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To download Nisus Thesaurus from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.

Nisus Thesaurus

By Nisus Software, Inc.

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With Nisus Thesaurus you get a fast electronic thesaurus that automatically integrates with any service aware application including Nisus Writer Express, Nisus Writer Pro, Mail, TextEdit, Safari, and more.


Screenshot 1

Customer Reviews

best choice for non-native speakers

Nisus Thesaurus has several features that make it the best choice for non-native speakers. The old-fashioned style of thesaurus is not very helpful for English learners because they typically don't know the meaning of the suggested synonyms and so end up choosing a word that doesn't make sense for their particular context. Nisus Thesaurus, on the other hand, provides a list of possible meanings for the word you look up, and then makes it clear which synonyms are appropriate for which definition. Even better, it lets you choose 'more specific' or 'more general' synonyms, so a non-native speaker can avoid choosing a word with an overly narrow meaning.

I have recommended this thesaurus to my international students, but I was disappointed to discover that they can't use it on their smartphones. Please make this thesaurus available as an app for iPhone and iPad!!!!!!

Pretty limited...

This can't be your only thesaurus if you're interested in genuinely exploring the words behind a concept that's on the tip of your brain. A few common words have a nice range of suggestions, but it wasn't the kind of broad spectrum of esoteric associations implied in the picture for what I've tried so far.

Ex: "Critical = decisive, vital" … If either of those were helpful then it's seriously unlikely that a thesaurus is going to make the difference in polishing up whatever it is you're writing.

I wish I could be more specific, but I can't find the words. If only I had good thesaurus. :-/


This is a great app. I use it for my writing and it has come in useful in many ways. It tells me different options for the word, for instance, if I were to type in 'tape' it would give me all of the different uses of the word and the definition. Like I said, this is a great app, and it has saved a few of my books from rejection. This is my new best friend. = D
Thank you for this app. I can't believe it's free.

Nisus Thesaurus
View in Mac App Store
  • Free
  • Category: Reference
  • Released:
  • Version: 1.1
  • Size: 9.0 MB
  • Language: English
  • Seller:
Rated 12+ for the following:
  • Infrequent/Mild Profanity or Crude Humor
  • Infrequent/Mild Alcohol, Tobacco, or Drug Use or References
  • Infrequent/Mild Mature/Suggestive Themes

Compatibility: OS X 10.6.6 or later

Customer Ratings

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