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Download the essential and most comprehensive dictionary app for dependable definitions at your fingertips. is the leading free English dictionary app for iPhone – with over 2,000,000 trusted definitions and synonyms and designed and optimized for your mobile device.

Works offline! Install the free offline dictionary for access to definitions whenever you need them.

In addition to the trusted reference content from and, this app includes:
- Word of the Day – learn a new word each day and expand your vocabulary
- Audio pronunciations – never mispronounce another word
- Voice search – find the definitions you’re looking for anywhere, anytime
- Translator – translate into over 25 languages
- New Content Collections Carousel includes fresh content from our Blog, Slideshows and Word of the Day
- Quiz widget - test your vocabulary skills with our Word of the Day quizzes
- Word origin and history - find out where even the strangest words come from
- Favorite words and search history - customize your recently searched word list and never forget the newest words you’ve learned
- Spelling suggestions - not sure how a word is spelled? This app will find it for you
- Local lookups - see which words are being searched near you
- Advanced learner’s dictionary - includes extra information about word usage for English learners
- Optimized for Apple Watch!

Get even more from your app with our Upgrades:
- Example Sentences
- Encyclopedia
- Idioms and Phrases
- Medical, Science, Rhyming and Slang Dictionaries

Or you can get all of this additional content and remove ads for one low price with our Premium App.

What's New in Version 6.0.1

Thanks for all the feedback, and don’t fret, we haven’t removed Thesaurus.
TIP: Thesaurus is now called Synonyms – find it at the bottom of your search results.

Also, in this update:
• Fixed: critical bugs
• Added support for iPhone 6 and 6 Plus screens

iPhone Screenshot

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Apple Watch

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Customer Reviews


I love this app. & can't think of anything that I would want to change. I use it quite frequently to research a word & to check the word of the day. My belief is that you never stop learning, and that's a good thing! To be specific about what this app. offers, is as follows:
•constantly updates formatting-& the updates are always a very welcome surprise
•sends a "word of the day" that includes everything, including all about the origin of said word
•is in an easy to understand format & wording (otherwise known as layman' terms)
•each word of the day includes factoids, word games, further history...etc.
•is illustrated
•offers related upgrades, the one that I really like is the very compatible Thesaurus (there are many to choose from)
•this app. makes learning fun
•I could go on & on...

On a personal note, having an extensive vocabulary has always been one of my passions, but even if you consider yourself not very interested-my opinion is that this app. may change your mind. 🌱

5s user

Really like this app. But having trouble since updating to iOS 9.0.2.
Tried to update Dictionary but process freezes about 70% through. Tried several times with same result.
Decided to remove the app and reload it. Delete process now frozen and the word "waiting" appears under the space where the app icon used to appear. The delete "x" no longer appears next to the missing icon which has been replaced by a grey square.
Repeated attempts to reload the app not successful.
Any helpful tips out there?

So Convenient!

This app is easy to use and offers an instant thesaurus, too. Check the definition and spelling in the dictionary, then with one touch you can see the synonyms - and antonyms. The word of the day feature is a nice addition to develop your vocabulary. All free! Dictionary & Thesaurus
View In iTunes
Offers Apple Watch App for iPhone
  • Free
  • Category: Reference
  • Updated:
  • Version: 6.0.1
  • Size: 43.8 MB
  • Apple Watch: Yes
  • Languages: English, French, German, Italian, Japanese, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Example Sentences Upgrade$2.99
  2. 100 Voice to Text Searches$2.99
  3. Encyclopedia upgrade$2.99
  4. Remove Ads Upgrade$1.99
  5. Medical Dictionary Upgrade$2.99
  6. 300 Voice to Text Searches$0.99
  7. Grammar & Tips Upgrade$1.99
  8. Rhyming Dictionary Upgrade$1.99
  9. Translator Upgrade$0.99
  10. Science Dictionary Upgrade$1.99