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Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

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U.S. Global Change Research Information Office. Provides access to data and information on climate change research, adaptation/mitigation strategies and technologies, and global warming related educational resources for users worldwide.

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The largest and most trusted free online thesaurus. Quickly find accurate and up-to-date synonyms, antonyms, and related words at Thesaurus.com. Synonym dictionary, antonym dictionary, words synonyms.