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The public site for Oxford Reference Online - the biggest, most up-to-date, authoritative, and accessible reference work in the world. This huge resource contains almost 2 million words and phrases from Oxford

This GuideSite focuses on the science of physics, addressing the major theories of physics, laws of physics, physical equations, the scientific method, history of physics, and physics experiments, as well as advice in completing physics homework.

Free online English dictionary by Babylon. Get free definitions from over 1,000 online dictionaries, glossaries and encyclopedias and download our translation/dictionary tool for free

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Eric Weisstein

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

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Free online English dictionary from Oxford, plus thesaurus, word of the day, resume examples, letter writing, and English grammar

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