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Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.

Investopedia.com - Your Source For Investing Education. Includes the most comprehensive investing dictionary on the web as well as articles and tutorials on nearly any aspect of the market.

Chemistry is the study of matter and energy and the interactions between them. Get facts for the elements in the periodic table. Find chemistry demonstrations and experiments and science fair projects. Get chemistry homework help with worked example ...

BusinessDictionary.com. Easy-to-use free business glossary with over 20,000 terms. Concise, clear, and comprehensive.

Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia e...

Founded in 1943, ASCD (formerly the Association for Supervision and Curriculum Development) is an educational leadership organization dedicated to advancing best practices and policies for the success of each learner. Our 160,000 members in 148 count...