Dictionaries – English Language

The American Heritage Dictionary of the English Language

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Cambridge International Dictionaries Online

Designed for the international or second-language speaker, includes Cambridge's Dictionary of American English, International Dictionary of English, International Dictionary of Phrasal Verbs and International Dictionary of Idioms

Dictionary.com

Dictionary returns several definitions from other reputable dictionaries

Merriam Webster’s Collegiate Dictionary

Includes definitions, pronunciation, usage, grammatical function and etymology, thesaurus, cross references, suggested spellings and illustrations

OneLook Dictionaries

Searches multiple online dictionaries, returning several possible definitions