English Dictionary Dunno is an intelligent English-learning assistant designed to enhance your English language skills. With a plethora of features, Dunno offers an offline English dictionary, grammar lookup by levels, voice and image word search, audio pronunciations, and detailed word meanings including examples, verbs, nouns, and adjectives. It also provides translations into 89 languages, pronunciation practice, grammar error detection, and an English notebook for vocabulary review.

Moreover, Dunno functions as a comprehensive English learning tool with features like flashcards, TOEIC, IELTS, and SAT vocabulary, a vocabulary notebook, community interaction, TOEIC test practice, and an English Q&A platform. Boasting an extensive database with 350,000 English words, 127 grammar levels, and 418,000 illustrative examples, Dunno aims to assist users in improving their English proficiency significantly.