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The only free Dictionary app you will ever need. Works offline! is the leading free English dictionary app for iPhone – with over 2,000,000 definitions and synonyms.

This app works offline – you do not need an internet connection.

Now get Word of the Day and more on your Apple Watch!

In addition to the trusted reference content from and, this app includes:
- Word of the Day – learn a new word every day
- Audio pronunciation – hear every word
- Voice search – speak to search
- Translator – get translations for over 30 languages
- Blog – explore over 800 fun language topics
- Slideshows – fascinating facts about language
- Quiz widget - test your vocabulary with Word of the Day quizzes
- Word origin - find out interesting etymologies
- Favorite words and search history – never forget the words you learn
- Spelling suggestions – get help with how words are spelled
- Local lookups - see which words are being searched near you
- Advanced learner’s dictionary – special content for ESL, EFL and English learners

Want even more? You can add to your app with our in-app purchases:
- Encyclopedia
- Slang Dictionary
- Idioms and Phrases
- Example Sentences
- Medical, Science and Rhyming 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 5.2.1

- NEW Apple Watch features: Word of the Day, voice search and more
- Bug fixes

iPhone Screenshot

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Apple Watch

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Customer Reviews

Excellent, thorough resource, well designed

This has been my go-to digital dictionary, thesaurus, grammar and basic etymology resource for a couple years now, and it keeps getting better. Especially useful are the word usage notes and similar word comparisons for many entries, which elaborate on the nuanced differences between similar words. The terrific thesaurus is more thorough than most integrated dictionary/thesaurus apps and websites. The app is also good at suggesting entries when you misspell. Having separate tabs for word origins, example sentences, idioms, slang, etc. for each word allows for more detail as you want it, without clutter. Overall it's a very clean, easy-to-use interface.

Only potential downside is that, not unlike thumbing through a great unabridged print dictionary, you can get totally lost in learning, only to suddenly look up and find you've spent an hour buried in words when you only intended to verify whether "from" or "to" should follow the word "different."

What did you expect?

It is exactly what I wanted, what I thought it would be, and what it should be. Simple. Direct. Easy. And bonus thesaurus. Win-win.

1• Don't ask me to buy things. It friggin asks me to upgrade for a few. If I wanted to spend money, I wouldn't have gotten the free one in the first place.
2• A few iPhones ago I decided to allow the "word of the day" function. I regretted it almost immediately. And I regretted it even more, subsequently LOATHING it after I couldn't figure out how to make it stop. Maybe if I had friends, a significant other, ANYONE who wanted to talk to me it wouldn't have been so bad. But....once a day....EVERY DAY it'd utilize a notification only to fool me into thinking someone wanted to talk to me. it would only be a further insult to take out my phone and have it mocking my lack of an extensive vocabulary (as 49/50 I almost doubted to even be words.....stupid English), reminding me why I probably don't have friends in the first place. Don't. Do. It.

Amazing, would suggest one thing only;

I love this app, and have been using it a lot lately as the volume of books I've been reading for pleasure has increased, necessitating the looking up of a lot of words out of my lexicon. On slow days I'm a fan out the word/phrase blog spelling out the difference between i.e. and e.g., etc.
However, because I would think the majority of users (like myself) are specifically tapping the app for one **quick** word definition, I think it would be much more convenient to have the search keyboard pop up immediately upon opening the app. Where it is now, it takes just about the same about of time to go to Safari, type it into the search there, and get the definition in the web browser. If I were able to just "tap and type" in the Dictionary app, I'd use it so much more.
Great app though! Dictionary & Thesaurus
View In iTunes
Works on Apple Watch with an iPhone
  • Free
  • Category: Reference
  • Updated:
  • Version: 5.2.1
  • Size: 36.9 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. This app is optimized for iPhone 5.

Customer Ratings

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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. Rhyming Dictionary Upgrade$1.99
  8. Grammar & Tips Upgrade$1.99
  9. Translator Upgrade$0.99
  10. Science Dictionary Upgrade$1.99