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Merriam-Webster Dictionary & Thesaurus

By Merriam-Webster, Inc.

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America's most useful and respected dictionary and thesaurus – with premium content and no ads.

Selected as a "Best New App" by iTunes.

The app has been fully redesigned for iOS 7 to make it even more enjoyable to use.

In addition to all the definitions from Merriam-Webster's Collegiate Dictionary, and all the synonyms and antonyms from Merriam-Webster’s Collegiate Thesaurus, the app offers voice search – to let you look up a word without having to spell it – example sentences, Quick Definitions, Word of the Day, Favorites, and more.

It’s a great tool for reference, education, and vocabulary building.

The premium content includes over 1000 graphical illustrations, and over 20,000 additional entries covering people, places, and foreign terms.

No internet connection is required to view the definitions or thesaurus (although you do need a connection to view illustrations, hear audio pronunciations, and use voice search).


* No ads
* Full Thesaurus
* Voice Search
* Example Sentences
* Quick Definitions
* Audio Pronunciations
* Word of the Day
* Recents -- lets you keep track of the words you've looked up
* Favorites
* Biographic and Geographic entries
* Foreign words and phrases used in English
* Graphical Illustrations

Please click the link to the Application License Agreement, below, which includes our App Privacy Policy

What's New in Version 3.1.2

Fix for keyboard bug on iOS8

- Updated with new words recently added to the dictionary, including "crowdfunding" and "hashtag"
- Added support for custom URL schemes
- Fixed Word of the Day display issue

iPhone Screenshot

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Customer Reviews


This is my favorite dictionary app. The presentation is downright gorgeous (I love the red circle they use as the logo)! The makers of this app deserve praise for skillfully finding a balance between being thoroughly detailed and being excessively bloated (as Fairfield's Dictionary app is). This dictionary sometimes offers clarification on synonyms (i.e.- the implicit difference between annoy, vex, irk, and bother), and this feature really helps you write with razor precision. The word of the day is also interesting, particularly the etymology comments. As an English major, I can't tell you how much this app has helped me in writing composition papers and formulating interpretations on poems and stories.

Features a broad range of obscure and new words! Lacks iPhone 6 support.

This dictionary app is by far the most impressive I have used because of the breadth of words it covers and the Word of the Day feature. I would really appreciate it though if this app could receive an iPhone 6/6+ optimization update to improve stability and reduce lag when opening the app and typing on an awkwardly shaped keyboard that was designed for the iPhone 5. Thank you very much for your consideration.


You know what would revolutionize this app? A couple of widgets for the drop down today screen attached to it...

1. Word of the day in the today drop down screen.

2. Ability to quickly look up a word in the today dropdown screen, instead of having to go into the phone and find the app itself.

Merriam-Webster Dictionary & Thesaurus
View In iTunes
  • $3.99
  • Category: Reference
  • Updated:
  • Version: 3.1.2
  • Size: 36.2 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.

Customer Ratings

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