Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To buy and download Merriam-Webster Dictionary & Thesaurus by Merriam-Webster, Inc., get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC

Merriam-Webster Dictionary & Thesaurus

By Merriam-Webster, Inc.

Open iTunes to buy and download apps.


Merriam-Webster Dictionary for Apple Watch is here!

This edition of America's most useful and respected dictionary and thesaurus features premium content and no ads, and introduces an Apple Watch extension that includes a Word of the Day glance, voice search right at your wrist, the ability to save words to your Favorites directly from the watch, and of course uses Continuity for a seamless Handoff to your iPhone or Mac to see more in-depth content, hear audio pronunciations, etc.

Selected as a "Best New App" by iTunes.

The app has been fully redesigned for iOS 8 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
* Today notification widget

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

What's New in Version 3.3.1

Fixed Word of the Day today extension bug

iPhone Screenshot

iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5

Apple Watch

iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5

Customer Reviews

Love the app BUT there should be a...

This app is fantastic! I love it! It was totally worth the $3.99! I've already learned so many new words. The "Word of the Day" feature is also pretty epic. The only thing that could make this better is for there to be a reverse lookup feature, where instead of looking up the word and seeing the definition and part of speech, you could search a definition and part of speech and see words that fit that definition and part of speech. But still, this app is LEGIT! 😄👍🏼

Handy Dandy Vocabulary!

Handy dandy vocabulary anytime anywhere with NO annoying ads!
Never say, "For lack of a better word", again because this dictionary comes thesaurus complete!
Don't know what I'd do without it ~ I LOVE this app!

Ok for the average vocabulary

I must preface this review by stating that I play a lot of word games and read a lot.

I rate this application a "meh".

That being said, I find this dictionary app essentially useless. And most of the words I am searching or not and it's storage. And so then I pursue the knowledge on the web and gratifyingly find my answers.

My wife who is an author, has abandon the use of this application altogether.

So, if you have a highschooler or less, this is not a bad app. It cuts down on the amount of data they will use on their phone. Otherwise it really is not that useful.

Merriam-Webster Dictionary & Thesaurus
View In iTunes
Offers Apple Watch App for iPhone
  • $3.99
  • Category: Reference
  • Updated:
  • Version: 3.3.1
  • Size: 42.5 MB
  • Apple Watch: Yes
  • Language: English
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5, iPhone 6, and iPhone 6 Plus.

Customer Ratings

Current Version:
All Versions: