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10 dictionary apps for iPhone and Android

Everyone needs a dictionary, whether it is reading a book and not understanding a word, studying for ENEM or even out of curiosity to increase their vocabulary.

Whatever the reason, we've sorted out a list of the best dictionary apps, so you can always indulge your idiom using your favorite smartphone or browser.

1. Dicio

One of the best-known options for Portuguese dictionary apps is Dicio, which has a page for you to use in your favorite browser and an Android app. In it you will find the definitions of over 400,000 words, synonyms, antonyms and examples.

It offers a wide range of features that make it particularly good, such as being able to download all entries for offline consultation. O “Popup Meanings”, allows the user to see the meaning of words in other apps and the "Word of the day"Show you a new vocabulary every day.

Go to the official website to use in browsers or go to the Play Store to download for Android.


2. The Free Dictionary

The Free Dictionary offers dictionaries in 14 languages ​​such as English, Spanish, German and Chinese, as well as Portuguese. He also translates English into over 40 different languages.

In it, you will find word games, daily articles and various encyclopedias, and you can also share your favorite words on social networks. As you play, you earn points and with them you can donate to needy children. The app is available for both Android and iOS.

3. Urban Dictionary

We also have the Urban Dictionary among the dictionary applications. It is for English speakers, but does not know the meaning of some grains or expressions used in movies, series and books. It is a community dictionary where you can help expand your definitions.

In the app, you can search for the term you want and find community-written definitions of each word. It has a fairly large number of meanings available to anyone who wants to see. Download from the Play Store or the App Store.

4. Unusual Dictionary

In the same vein as Urban Dictionary, it is also one of the dictionary applications that are created and moderated by the community that uses them. In it, you can send meanings for all types of words, expressions and acronyms of the Portuguese language, to help other people.

The app has dictionaries of synonyms, antonyms, related words, rhymes, examples and flexions, so you never miss the ideal term to use. You can favor your words you like best, see the most sought after and vote for the definitions found. It is exclusive for Android and you can download it by following the link.

InFormal Dictionary Dictionary Applications

5. Reverse Dictionary and Translator

Reverso is an excellent translation tool. Very functional, it offers words and expressions in 14 different languages: Portuguese, English, French, German and Spanish, among many others.

The app offers definitions of thousands of different entries, conjugations in 10 languages, context of using the terms shown, and even the pronouncement and translation tool of the browser or other apps. Download for Android or iOS.

6. Vocabulary

Vocabulary is one of the best dictionary applications for those studying English, with easy-to-understand definitions, even though they are all offered in English only.

All definitions have real usage examples, so you better understand when it applies. It also offers entry questions, helping you increase your vocabulary and making learning a game.

To download for iOS, follow the link at the App Store; It has no Android version, but it also has an extension for Chrome and a website to use in any browser.

7. English Dictionary – Offline

This dictionary offered by Livio is exclusive to Android, but still extremely complete. It works completely online from the moment you download it.

In it you will find definitions of over 325,000 words in the English language, with fast and efficient search, where you can find entries by searching only parts of them.

It has dark theme, random word search and compatible with various text readers, so you can always translate what you don't understand. Download from the Play Store.

English Dictionary - Offline Dictionary Applications

8. Dictionary Priberate

Priberam is one of the best dictionary applications, which has also been one of the best known for a long time. It has 16 dictionaries, four of which are in our language and 12 used for translation into several languages, such as Spanish, French and English.

You will also find in this application a conjugation of verbs, words of the day, most popular words, etymology of over 40,000 entries, among others. Download for Android or iOS.


VOLP, Portuguese Language Orthographic Vocabulary, is one of the best dictionary applications for those who want to improve their Portuguese. It also offers word suggestions from what you type, ensuring that the spelling is always right.

Its extremely clean interface has over 380,000 words with grammatical classifications and other information and also has a printed dictionary, which is generally outdated compared to other apps.

It is available for download for both iOS and Android, so you can check the dictionary from your smartphone.

10. Dictionary Offline Synonyms

The latest dictionary application on our list is a synonym, developed by the same developers as Dicio. It is an excellent resource for those who want to better study the language or work using it.

Through this application, you will find synonymous with more than 30,000 entries in our language, all offline. It is ideal for those who work writing texts or who are preparing for some test, such as ENEM.

It is exclusive to Android and is available for download from the Play Store.

Dictionary Synonyms Online Offline Dictionary Applications

And what did you think about our list of dictionary apps?

Leave your comments about them, if you have used them or if you prefer any other. Comment, too, because you're using these tools and don't forget to check out the best apps to study for ENEM.