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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, the app is 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
- Content Collections Carousel includes Word Trends, Grammar Tips, Slideshows, and Word of the Day
- Quiz widget - test your vocabulary skills (are you prepping for the SAT?) with our Word of the Day quizzes
- Favorite words and search history - customize your recently searched word list and never forget the newest words you’ve learned
- English Spelling help - not sure how a word is spelled? This app will find it for you
- Local look-ups - take a look at the words searched by location
- Learner’s Dictionary - includes extra information about word usage for English learners
- Optimized for Apple Watch!

What’s New

Version 7.5.27

Voice. noun. Something you can now use when searching for the definition of a word.

Our push notifications just got a whole lot better too. Travel anywhere in the world and receive real-time notifications and alerts from

You may also notice our Word of the Day has had a makeover. Check out the polished new look!

Ratings and Reviews

4.6 out of 5
2.2K Ratings

2.2K Ratings

Smart Readhead ,

Longtime User and Great Lover of App

I’m always curious. I really like this app because it just feeds my curiosity. With the exception of the other daily use apps, like Safari/Google, time clock, and calendar, this is my most used app. I love having verbal pronunciation because I’m not always right with the phonetic written pronunciation. As another reviewer stated, I really appreciate this app because before I used to keep notes on words to look up later that I had come across in writing or audio that I didn’t really know the definition of. But by the time I’d great to looking up the word on the net, I’d likely forget the provenance of the word’s usage. Most of the time I have an idiomatic or casual knowledge about the word but I like to know truly what is the definition. Along the way I’ve been very surprised to find that the definition is completely different than what I’ve thought. In fact recently I discovered that there is a word I often hear used and have used it as well but completely incorrectly.

Long time ago Dictionary integrated the Thesaurus which is excellent since I also always like to see the synonyms and antonyms of the word I’m looking up to not only solidify the definition but also to expand my vocabulary. I would recommend this app to any wordsmith like me.

Developer Response ,

Thank you! Thank you! We love positive feedback! Sometimes we all misuse a word from time to time, its only human after all. We use the app probably just as much as you do to make sure we are using words correctly 🤓

Upset LongTime Customer ,

audio no longer works since last update

since your last update, the audio no longer works on iphone XS Max, when trying to use pronunciation feature. i’ve been waiting for a new update to correct this feature for several weeks. i have now started looking at other apps that have this feature. up until now, i have used your app for many years without any problems that i can remember. however, this is a very important feature and used very frequently, now rendering the app useless to me fifty percent of the time. please take note.

Not so fast there “wrongpants”. Your audio is STILL NOT fixed completely... it does appear to be working on iphone when manual ringer is turned on, however, not when turned to vibrate, such as my phone has always been set to for many years. So whatever you have altered is still not being picked up by your brain trust, which means you are still unaware. These little details are big deals to phone owners who have their phones set up in specific ways. Anyway, this little irritation is so unnecessary. Why fix things when they are not broken? Why post updates when you don’t test basic features? One unnecessary improvement shouldn’t negate basic features. Good luck with all that, there are plenty of clueless app providers out there so your not alone.

Developer Response ,

Hi there,

In this version we changed the audio settings to respect the volume settings of your phone. For example, if the audio or ringer is off on your phone, the pronunciation button will not have audio. Try to turn on your audio and re-try the pronunciation. Thanks for writing your review!

G&M Filmmaking ,

Improve use & enjoyment of language, with this perfect blend of conciseness & thoroughness

I use this app all the time, and it’s right at the top of my list of favs (surpassed perhaps only by Blue Letter Bible’s app). I have always loved words, and a mentor once gave me a sage admonition never to use a word I couldn’t define. He insisted it was arrogant. I’ve found his challenge has helped me be more precise in my thinking, humble in my attitude, and appreciative of others’ wordsmithing skills. And it makes learning from others more fun.

Well, this program just facilitates all these. In the world of language, it allows for real-time, “point of care” use and learning. I’ve looked up things while in hospital meetings (I’m a physician), while waiting in line, writing emails or other documents, and writing reviews for iPhone apps. I love the etymology tool, as it helps make definitions and nuances easier for me to remember, and the words themselves more vivid & enriching.

I suggested the app to my son recently, as I’ve found that regardless of what kind of work we do, communication that shows attention to word usage (as well as grammar) captures people’s attention — and rightly so.

If you want to improve your use, understanding and enjoyment of language, I think you’ll find this program very valuable. Strongly recommended!


Seller, LLC
154.2 MB

Requires iOS 8.0 and watchOS 2.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. set of 300 voice to text searches $0.99
  2. Medical Dictionary Upgrade
  3. Science Dictionary Upgrade


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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