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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...

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

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.

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

Watch full episodes of your favorite PBS shows, explore music and the arts, find in-depth news analysis, and more. Home to Antiques Roadshow, Frontline, NOVA, PBS Newshour, Masterpiece and many others.

Vocabulary.com helps you learn new words, play games that improve your vocabulary, and explore language.

THE starting place for exploring 20th Century History.

The Ludwig von Mises Institute is the research and educational center of classical liberalism and the Austrian School of economics. Working in the intellectual tradition of Ludwig von Mises (1881-1973) and Murray N. Rothbard (1926-1995), with a vast ...

Explore HISTORY shows, watch videos and full episodes, play games and access articles on historical topics at History.com.

The Gilder Lehrman Institute offers seminars and lesson plans for teachers as well as fellowships and forums for U.S. History students and scholars.