Dictionary.com is the leading ad-free English dictionary app for Android. So, what does that mean? We’ll define it for you!

We’ve got more than 1.5 million definitions and synonyms to help improve your vocabulary, study for the SAT or prep for the ACT, or boost your Words With Friends skills. Install our offline dictionary so you can access words—wherever, whenever.

Get trusted reference content from Dictionary.com and Thesaurus.com designed for English learners:

1. Get help spelling and learning new words: Use voice-search to find dictionary definitions without typing a single word.

2. Discover thesaurus synonyms and antonyms: Enhance your ACT or SAT prep.

3. Say new words correctly with in-app pronunciations.

Find definitions, learn spelling, study grammar, and practice pronunciation, all within one app. Explore a host of education features designed to help you pick up new vocabulary, including Word of the Day, language trends, and more.

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Example Sentences
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Idioms and Phrases
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Medical Dictionary
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English Words & Vocabulary: Search Dictionary Definitions & Thesaurus Synonyms
WHAT’S NEW
- Bug fixes and enhancements

- Example sentence fix