Dictionary Online

Dictionary is the world's leading online source for English definitions, synonyms, word origins, audio pronunciations, example sentences, slang phrases...

The only Dictionary and Thesaurus with every word you search for, Millions of definitions from top sources, including:

Webster's Dictionary

Roget's Thesaurus

The American Heritage Dictionary

Plus FREE access to:

Word of the Day

Medical Dictionary

English Idioms and Slang Dictionary

Translations of English into 40+ languages

Dozens of other translation options

+ Much more! The Free Dictionary is like getting 100+ apps in one easy-to-use interface.

Here's what you can do with The Free Dictionary app:

* Find every word you search for.

Clear, accurate definitions from top dictionaries—online.

* Find synonyms fast.

Free Thesaurus with simple interface makes it easy to find the perfect word. Browse synonyms, antonyms, and related words.

* Learn something new every day.

Word of the Day

Idiom of the Day

+ Other daily content

* Build your vocabulary.

Don't just look up words—learn how to use them! Featuring:

Audio pronunciations

Example sentences

Etymologies

+ More!

The perfect dictionary app for word lovers and learners of all levels.

* Explore topics in-depth.

Multiple specialty dictionaries and encyclopedias:

Medical dictionary

Legal dictionary

Science dictionary

Financial dictionary

Idioms and Slang dictionary

Acronyms and Abbreviations

+ More!

* Play word games.

Spelling Bee, Hangman, and more.

* See idioms in action.

Watch idioms videos inside the app! Featuring animated explanations of words and phrases from the idioms and slang dictionary.

* Access dictionaries in 13 other languages.

Spanish dictionary and thesaurus

French dictionary and thesaurus

German dictionary and thesaurus

Italian dictionary and thesaurus

Portuguese dictionary and thesaurus

Russian dictionary and thesaurus

Chinese dictionary

+ More!

* Translate English into Spanish, French, and 40+ languages.

Or translate other languages into English. Access dozens of other translation options.

* Access dictionaries and encyclopedias from these top publishers with just one search:

McGraw-Hill

Houghton Mifflin

HarperCollins

Random House

Cambridge University Press

Columbia University Press

Elsevier

Mosby's

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