Lexio: English Dictionary

An offline English dictionary. 127,000 words, a definition on 99.4 percent of them, IPA pronunciation, synonyms and word relations. Quizzes and flashcards too.

Lexio is a fast, fully offline dictionary of the English language.

• 127,879 words, with a written definition on 127,159 of them - 99.4 percent, usually with several senses
• 248,435 inflected forms recognised: type "mice" and it takes you to "mouse"
• Spelling correction and suggestions when you mistype
• IPA pronunciation on 33,000 words, plus read-aloud on any entry
• Synonyms, antonyms, word family, and broader and narrower terms - every one tappable, so each opens its own entry and you can follow a chain of meaning as far as you like
• Example sentences on 24,173 entries
• Browse opens on the words people actually use, with strict A to Z one tap away
• On iPad, results and the entry sit side by side
• Five quiz modes and three mini-games: matching, fill the gap, and beat the clock
• Flashcards with spaced repetition, so words you get wrong come back sooner
• Your own lists, favourites and notes
• Dark mode, high contrast, adjustable text, screen reader support
• No account, no ads, no data collection, no internet needed

This is a dictionary of the English language, not an encyclopedia: it defines words, and does not carry entries for people, towns or Latin genus names.

Free for 14 days. After that, searching and browsing all 127,879 words stays free; a one-time 1.99 USD purchase keeps every sense, the examples, synonyms, word relations, quizzes and flashcards open.

Definitions from Princeton WordNet. Pronunciations from the CMU Pronouncing Dictionary. The everyday grammatical words - the, of, and, because - and a set of example sentences were written for this app. Not affiliated with Princeton University, Carnegie Mellon University, or any dictionary publisher.