Thesauri & Grammars
- WordNet
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Dictionary of words organized into synonym sets from the Princeton University Cognitive Science Laboratory.
- Lexical FreeNet
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Thesaurus that allows users to enter one or two words, concepts or famous names and retrieves related words, antonyms, anagrams, rhymes, words containing the first as a substring, and biographical terms.
- Roget's Thesaurus
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Searchable version 1.02 supplemented July 1991.
- Wordsymth: The Educational Dictionary-Thesaurus
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A searchable integrated tool.
- The American Heritage Book of English Usage
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Offers guidelines and explains controversies in grammar, style and word choice; also includes a section on e-mail.
- Common Errors in English
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Compilation from the Department of English at Washington State University.
- Modern English Grammar
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Modern English grammar book compiled by Daniel Kies, Department of English, College of DuPage.
- Guide to Grammar and Writing
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Lessons and quizzes on English grammar by Charles Darling of Capital Community College.
- Style Guide
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Guide to English style from The Economist.
- Art & Architecture Thesaurus Online
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This thesaurus covers the fields of fine art, architecture, decorative arts, archival materials, and material culture and contains more than 125,000 terms. From the Getty Museum/J. Paul Getty Trust.