English Dictionary Dunno

Contains adsIn-app purchases
4.5
2.24K reviews
100K+
Downloads
Content rating
Everyone
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About this app

English translation, English Dictionary Dunno is your intelligent English-learning assistant!
Dunno helps you search English grammar, and English words, translate English to English, learn vocabulary and learn English effectively!

FEATURES:
Flexible lookup:
- Offline English dictionary: look up words, grammar, prepositions, sentence patterns, and images.....
- Look up English grammar in use by levels: A1, A2, B1, B2, C1, C2.
- Search autocomplete – displays predictions as you type.
- Easy lookup words by voice and image.
- Comprehend the full meaning of words, examples, verbs, nouns, adjectives, and illustrations.
- Suggestions for Word type, synonyms, antonyms, and related words.
- Audio pronunciations: distinguish how to read British English and American English.

In particular, Dunno is able to translate English into 89 other languages accurately: 2-way translation, multi-language translation, separate English sentences
►Translate English to English
►Translate English to Spanish
►Translate English to French
►Translate English to Chinese
►Translate English to Japanese
►Translate English to Korean

Improve English pronunciation: Dunno English Dictionary – English Translation helps you practice speaking skills and get clearly feedback.

Check grammar errors right on an English Dictionary app: detect mistakes in words, English grammar, and detailed correction suggestions

English notebook:
- English dictionary by major, word level in TOEIC, IELTS, SAT...
- Double memorization: review English vocabulary through Flashcard, quiz

More than just a free English translation, English dictionary Dunno is also a useful English learning and vocabulary mnemonic tool
- Easily add English vocabulary to Notebook and learn English grammar.
- Learn English vocabulary by flashcards
- Statistics on the number of words, sentences, and grammar learned.
- Keep track of how many words you've memorized.
- Smart English vocabulary notebook: with 3000 TOEIC words, Toefl, IELTS, SAT.
- English learning community.

Take a TOEIC Test with answers and detailed explanations.
Especially the English Q&A community is interesting.

English Dictionary – English Translation Dunno’s data:
- 350,000 English to English words.
- 127 English grammars by levels: A1, A2, B1, B2, C1, C2.
- 418,000 illustrative examples and photos.

English Dictionary – English Translation Dunno - Add-ons:
- Suggestions when looking up words
- Open English Dictionary
- Hot trend English words
- Search words with detailed results
- Translate and retain the history
- Notebook to save your favorite words
- Studying on the lock screen.

English Dictionary – English Translation Dunno has helped more than 80% of users learn English better every day. Let Dunno help you!
In particular, you can use the website at: https://dunno.ai.

WE LOVE YOUR FEEDBACKS
Do not hesitate to send your suggestions to Dunno via Email: eup.mobi@gmail.com. Thanks!
Updated on
Oct 19, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, Personal info and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.6
2.11K reviews
Hung 7heMagician
November 13, 2025
Could you make the flash card similar to Hanzi Dictionary (with space repetition & the swipe gestures) please 🥺? I bought this app since I used Hanzi dict, and love its vocabulary & flashcard repetition system
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Amir Jamali
November 18, 2025
Ads are really disruptive and annoying. At least get rid of offline premium purchase pop up ad.
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val lucero
September 11, 2021
It's an amazing dictionary for learners. It's also very handy more than any other dictionaries like the Oxford Dictionary. I love this app, but I'd love it more if you put more information like labeling the word belonging to the 'archaic' entry or belonging to a particular discipline. Like 'astrology', 'grammar', 'philosophy' and etc.
14 people found this review helpful
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Mobile Learning
September 13, 2021
Hello, thank you so much, we are trying to improve the app, if you have any issue or suggestion please feel free to contact me via email: eup.mobi@gmail.com. and don't forget give us 5 stars so we can have motivation to make the app better and better, have a nice day!

What’s new

- Fixed some minor bugs.