Dictionary.com: Find Definitions for English Words

Dictionary.com is the leading 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 synonyms and antonyms in the thesaurus: 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.

Want more words? Enhance your Dictionary.com app with our in-app purchases:


Example Sentences
Grammar and Tips

Idioms and Phrases
Rhyming Dictionary
Encyclopedia

Medical Dictionary
Science Dictionary
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*Unlock all in-app purchases for one, low price by upgrading to the Dictionary.com Premium app!*