Dunno: English Dictionary

Look up any English word, translate text or photos, and hear how it's actually pronounced — online or offline.

Dunno is more than a dictionary. It's a complete English learning assistant: 350,000 words, grammar organized by CEFR level, camera and voice translation, pronunciation scoring, and your own vocabulary notebook with flashcards and quizzes.

LOOK UP ANYTHING, ANYWHERE

- Full offline dictionary — words, grammar, prepositions, sentence patterns, images

- Autocomplete predicts the word as you type

- Search by voice, or point your camera at a word and get the meaning instantly

- Every entry includes definitions, examples, word forms, synonyms, antonyms and related words

- Audio pronunciation in both British and American English

TRANSLATE 89 LANGUAGES

Two-way translation for text, photos and full sentences — Spanish, French, Chinese, Japanese, Korean, Vietnamese and 80+ more.

PERFECT YOUR PRONUNCIATION

Record yourself, compare it with a native speaker, and get instant feedback on exactly what to fix.

CHECK YOUR GRAMMAR

Paste any sentence to catch spelling and grammar mistakes, with a clear explanation of every correction.

GRAMMAR BY LEVEL

127 grammar topics organized from A1 to C2, so you always know what to learn next.

YOUR VOCABULARY NOTEBOOK

- Save any word with one tap

- Review with flashcards and quizzes so words actually stick

- Ready-made lists: 3,000 TOEIC words, plus IELTS, TOEFL and SAT sets

- Word lists by field of study and difficulty level

- Track how many words, sentences and grammar points you've mastered

- Keep studying on your lock screen in spare moments

PRACTICE FOR THE TEST

Full TOEIC mock tests with answer keys and detailed explanations for every question.

ASK THE COMMUNITY

Stuck on a sentence? Post it and get answers from other learners.

BY THE NUMBERS

- 350,000 English words

- 418,000 examples and illustrations

- 127 grammar lessons, A1 to C2

- 89 translation languages

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