Dictionary - Merriam-Webster
Books & Reference · Merriam-Webster Inc.
Dictionary - Merriam-Webster screenshots
Dictionary - Merriam-Webster is the Android app from Merriam-Webster Inc., the American dictionary publisher. It has been on Google Play since June 2011 and has passed 50 million installs, which tells you how many people treat a phone as their first place to check a word. The main reason to consider it is simple: the core reference material is available without a connection, so definitions and synonyms are there when you need them.
The app is free and supported by ads, with a subscription available for anyone who wants them gone. The average rating sits at 3.6 from 518,982 ratings, a figure that reflects a long-running, heavily used app rather than a new release. If you write, study or read in English regularly, this is the sort of tool that earns space on a home screen.
Quizzes turn lookups into practice
The feature Merriam-Webster leads with in the current version is word games. Vocabulary-building quizzes are built in, described as fast exercises for learning new words or testing what you already know. They are pitched at everyone from English learners to people who simply enjoy words, and they give the app a second purpose beyond answering a question you already have.
That matters because a dictionary is usually a reactive tool: you open it when you hit an unfamiliar word and close it again. Quizzes make it something you can pick up deliberately, with a few minutes of practice rather than a single lookup. I would expect this to appeal most to learners preparing for exams or to anyone who wants to expand an active vocabulary rather than just check a spelling.
Extra vocabulary tools are available as paid add-ons. Those extras are optional, while the quizzes come with the app, so the practice side can be tried before spending anything.
Thesaurus, examples and pronunciation in one place
Around the core definitions sits an integrated thesaurus with more than 200,000 word choices, each with examples of how the word is used, so you can see a word in context rather than guessing at its register.
Audio pronunciations are voiced by real English speakers rather than synthesized speech, which helps when a spelling gives you no clue about stress or vowel sounds. Voice search lets you look a word up without spelling it, which is handy for terms you have only ever heard spoken. Word of the Day delivers a fresh word daily for readers who like a steady trickle of new vocabulary.
Two smaller features round out the reference side. You can save favorite words and keep a search history, so the words that matter to you are easy to return to, and favorites sync between devices. On tablets, a scrolling index lets you browse the entire dictionary rather than only searching it, which suits readers who like to wander through a reference work.
What the app asks of you
The download is free, and the app is supported by ads. A subscription is available if you want to remove them, so the choice is between living with advertising or paying to be rid of it. Additional vocabulary-building resources can be bought inside the app.
The app also splits its features by connection. Definitions and synonyms are fully accessible whether or not you are online, which covers the most common reason to open a dictionary. Illustrations, audio pronunciations and voice search all require a connection, so the spoken and visual parts of an entry are the ones that wait until you have signal.
That split is worth planning around. If you are reading somewhere with poor reception, you can still check meanings and find synonyms, but you will not hear how a word is said or see any illustration attached to it. Loading a few tricky pronunciations while you do have a connection is a reasonable habit.
Getting more out of a daily reference
The most practical approach is to lean on the parts that work anywhere. Save words you keep returning to as favorites so they are one tap away, and let the search history act as a record of what you have been reading. Favorites syncing between devices means a phone and a tablet can share the same list, which helps if you read in more than one place.
Use Word of the Day as a low-effort way to keep vocabulary moving, and treat the quizzes as short practice sessions rather than a course. Voice search is the quickest route when you have heard a word but cannot spell it; audio pronunciations are worth playing whenever you are online and unsure of a word you plan to use out loud.
Recent updates have added new words and revised definitions alongside bug fixes, so the reference content is refreshed rather than frozen. For a dictionary, that ongoing editorial work is the feature that matters most over years of use.
A reference shelf that fits in a pocket
Dictionary - Merriam-Webster is a straightforward proposition: a well-known American dictionary, a large thesaurus, example sentences, human pronunciations and vocabulary quizzes, with the core definitions and synonyms working offline. The free version carries ads, and a subscription removes them; extra vocabulary resources are sold inside the app.
It suits students, English learners, writers and anyone who looks up words often enough to want a reference on hand rather than a browser tab. If your main need is checking meanings and finding alternatives while you read or write, this covers it, and the quizzes add a reason to open it when you are not stuck on a word.
The main thing to weigh is the advertising on the free tier and the connection needed for audio, illustrations and voice search. Neither is a hidden cost; both are stated plainly. For a free, long-established dictionary with offline definitions, that seems a fair trade.
The short verdict
A dependable offline dictionary with a strong thesaurus and quizzes, held back only by ads and the connection needed for audio.
What's new in version 5.6.2
A dictionary update with new words, and newly revised definitions. Bug fixes.
App specs
- Version5.6.2
- UpdatedSeptember 30, 2026
- Downloads50M+
- RequiresAndroid 6.0+
- PriceFree
- Age ratingEveryone
Dictionary - Merriam-Webster: frequently asked questions
Does Dictionary - Merriam-Webster work without an internet connection?
Definitions and synonyms are available whether or not you are connected, so the core reference works offline. A connection is needed for pictures, spoken pronunciations and voice search. If you want to hear how a word is pronounced, do it while you have signal.
What does the subscription remove?
The app is free and supported by ads, and a subscription is available to remove them. The developer also sells additional vocabulary-building resources through in-app purchase, separate from the subscription. The core dictionary and thesaurus are part of the app itself.
How does voice search work?
Voice search lets you look up a word without spelling it, which is useful for terms you have only heard spoken. It requires a connection to work. Spoken pronunciations also need a connection, and real English speakers provide the audio instead of a synthetic voice.
Can I keep a list of the words I look up?
You can save favorite words and keep a search history, so words that matter to you are easy to find again. Favorites can also be synced between devices, which helps if you use the dictionary on more than one screen. On tablets, a scrolling index lets you browse the whole dictionary.
What do the quizzes add to a dictionary app?
Vocabulary-building quizzes are built in as fast exercises for learning new words or testing what you already know. They are aimed at everyone from English learners to people who enjoy words. Word of the Day adds a new word daily for a steady trickle of vocabulary.
Pros
- Definitions and synonyms work without a connection
- Thesaurus covers more than 200,000 word choices
- Pronunciations voiced by real speakers
- Quizzes and Word of the Day build vocabulary
- Favorites sync between devices
Cons
- Free version is supported by ads
- Subscription needed to remove them
- Audio, illustrations and voice search need a connection
- Extra vocabulary resources cost money
Download Dictionary - Merriam-Webster
by Merriam-Webster Inc.
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