Download the number one free dictionary app with English language learning tools and free word games built for every level of learner.
With more than 2 million trusted definitions and synonyms plus word puzzles, language quizzes, and spelling quizzes, this English dictionary and thesaurus app for iPhone is optimized with your mobile device in mind to help you learn English or improve your English vocabulary.
Flip to dark mode to give your eyes a break, or stick to the traditional set-up. It even works offline! Install the offline dictionary for access to definitions and synonyms whenever and wherever you need them — no bulky books necessary.
In addition to the trusted reference content from Dictionary.com and Thesaurus.com, this education app includes:
Word Puzzle ► Love crossword puzzles and anagrams? You’ll flip for our word puzzle! Unscramble the letters, and cash in your coins for an extra boost. Want more word game fun? Improve your vocabulary with fun spelling quizzes and vocabulary challenges.
Word of the Day ► Learn a new word each day and expand your vocabulary education.
Synonym of the Day ► Can you pick the correct synonym for a word? Keep your vocabulary sharp with our daily synonym challenge.
Audio pronunciations ► Never mispronounce another word.
Synonyms ► Get thesaurus content alongside your dictionary definitions.
Voice search ► Find the definitions you’re looking for anywhere, anytime. The app even offers up English spelling help. Not sure how a word is spelled? Say it out loud, and this app will find it for you.
Grammar help ► Get grammar tips, word usage, and more to improve your writing.
Editorial articles ► Explore editorial content for features on words, the origins of our language, and the nuances that make English so complicated and unique.
Favorite words and search history ► Customize your recently searched word list, and never forget the newest words you’ve learned.
Learner’s dictionary ► Includes extra information about word usage for English learners.
Dictionary shuffle ► Think you know ALL the definitions? Prove it with Dictionary Shuffle, which chooses a word at random and brings you to the definition.
A-Z Dictionary ► What’s more exciting than ... wait for it … browsing the Dictionary?! We’ve now made it even easier, with the A–Z Dictionary.
Optimized for Apple Watch!
Get even more from your app with our upgrades:
- Example Sentences
- Idioms and Phrases
- Science and Rhyming Dictionaries
- Offline Dictionary + Remove ads
Or get the best value with our power pack, which includes them all!
Update time! The dictionary is always bursting with lexical surprises. Have you played around with the app lately?
Ratings and Reviews
LOVE. THIS. APP!!!
I use this app absolutely every day! If I’m in a meeting, or even just having a conversation with someone, and they use a word I’m not familiar with, I’ll make a mental note of it, or jot it down, and as soon as I have a chance, I immediately pull up this app and look up any words I made a note of. I do the same thing when I’m watching TV and any new or unfamiliar words come up... I press pause, and pull up the word in my amazingly handy and convenient Dictionary app! 😁💁🏼♀️ This is one of the most substantial and most frequently used apps I have, and I ALWAYS go for any upgrade they offer, which I reallyyyy COULD NOT RECOMMEND MORE! One of my FAVORITE things about this app is the *Learners* tab, which you can click on, especially if the definition is somewhat vague or unclear, and I’d say a good 70-80% of the time, at least, they have a break down of the meaning of the word, how to use it, and how to incorporate it into a sentence, etc~ which is incredibly valuable when you’re just beginning to learn and understand a word and how to use it. I just love it!!! Inevitably, I will continue on to the *Example Sentences* tab to see how the word is further used in different ways and contexts, which is also extremely helpful. It’s always surprising to me how much use I get out of this app, but it has helped me immensely to expand my vocabulary, and for that, I’m extraordinarily grateful. I wish I could give this app 10 stars!!! ✨⭐️🌟
Developer Response ,
This review is enough to make us blush, Lauren! 😊 We are truly delighted to hear that you've had such a fantastic experience with our app. Thank you so much!
Bad word of the day trend
I used to engage this app often. When I needed a word, when I wanted to expand my lexicon and improve my parlance. I loved to see the exciting word of the day and challenge myself to use it. However, recently they have begun exhibiting boring and commonplace words of the day that I have absolutely zero interest tapping on the notification. I found myself loathing to even open the app when I need a definition because of the stupid mundane word of the day. Curse the developers for having damned me to this wretchedness. But then, one day, I tapped on the word of the day. It was something stupid, like “garden”, and the actual word of the day when I opened the app was something like “meliorism”, a word I actually didn’t know. In conclusion, this was a user error. What was happening is that I was getting notified of the synonym of the day, which supplies a simple word and several synonyms for it. Which it totally fine. Boy do I have egg on my face for that one. Rather, I have albumen and vitellus on my visage. Good app all in all.
Developer Response ,
The English language is large, and our audience is global. Our Word of the Day team works very hard to find interesting words that folks of varied backgrounds will find useful, new, or an interesting point of knowledge. Not every word will be every person's favorite, but we hope people can appreciate the word and look forward to tomorrow's word.
We are glad to hear you are again enjoying the Words of the Day and our app!
Corporal (Ret.) Ralph D. Fiorenza, Pa State Police
In my life, and in my life’s work, I have long labored with speaking, writing, and when preparing factual reports of important incidents and events.
It has always been my effort to convey my thoughts to others, official or otherwise, succinctly and with utter accuracy. In the process, I learned a wide vocabulary is the foundation for providing clear focus about any occurrence whether it pertains to personal issues or creating official reports for myriad purposes.
Making it a point to accomplish this, I purposefully delved into dictionaries and thesauruses not to impress and amaze, but rather to be exceptionally lucid and to provide a view of things in their true and relative importance. Hence, I endeavored to make use all media that enhanced my vocabulary. While there is always room for improvement, I take satisfaction in knowing that my store of words is ample to bring about accuracy to my spoken and written words. I owe much to Merriam-Webster involving this persistent activity, for it has served me well.
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- Dictionary.com, LLC
- 50.9 MB
- Requires iOS 11.0 or later.
- Requires iPadOS 11.0 or later.
- iPod touch
- Requires iOS 11.0 or later.
- Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- Age Rating
- © Dictionary.com, LLC 2018
- In-App Purchases
- Example Sentences $2.99
- Encyclopedia $2.99
- Power Pack $5.99
- Grammar & Tips $1.99
- Rhyming Dictionary $1.99
- Idioms & Phrases $1.99
- Science Dictionary $2.99
- Remove Ads $2.99
- Offline Dictionary $2.99