The Online Slang Dictionary

Learn thousands of real slang words or add your own.

17 Alternatives To The Online Slang Dictionary

Apple Dictionary

Your Mac also comes with a versatile Dictionary application.
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Collins English Dictionary

The official Collins English Dictionary online.
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ECG for Apple Watch

ECG app and irregular heart rhythm notification

Eko

Strap a jetpack to your Korean writing & reading level with software designed for non-native…
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Longman English Dictionary Online

The Longman Dictionary of Contemporary English Online is an online version of the CD-ROM of the…
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Macmillian Dictionary and Thesaurus

The Free Online English Dictionary from Macmillan Publishers.
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Merriam-Webster

No other dictionary matches M-W’s accuracy and scholarship in defining word meanings. Our pronunciation help, synonyms, usage and grammar tips set the standard.

Power Thesaurus

Power Thesaurus is a fast, comprehensive and easy-to-follow online thesaurus for writers…

Reverse Dictionary

Describe a concept and get back a list of words

SayWhat

A fun and informative Video Urban Dictionary.

Silicon Valley Dictionary

Urban dictionary meets Silicon Valley

Spell It Out

Spelling out tech acronyms so you can be in the know.

The Free Dictionary

The World’s most comprehensive free online dictionary, thesaurus, and encyclopedia with synonyms, definitions, idioms, abbreviations, and medical, financial, legal specialized dictionaries
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Urban Dictionary

Urban Dictionary is a Web-based dictionary of slang words and phrases.