English Dictionaries and Thesauri
Directories of Dictionaries and Thesauri
- The Glossarist, a searchable directory of English glossaries and topical dictionaries
General English Dictionaries
- The American Heritage Dictionary of the English Language, third edition, 1996, from Bartleby.com
- Merriam-Webster OnLine
- Merriam-Webster Word Central
- OneLook Dictionaries, indexes multiple dictionaries
- Wordsmyth: the Educational Dictionary-Thesaurus, a standard dictionary of American English, integrating a thesaurus within its structure, by Robert Parks
Acronyms
- Acronym Finder
- Acronyms, Abbreviations and Definitions Found in E-Mail Messages and Newsgroup Postings, by Patrick Amato
Thesauri
- Roget’s II: The New Thesaurus, third edition, 1996, from Bartleby.com
- Roget's Thesaurus of English Words and Phrases, based on the 1911 edition from Project Gutenberg
- Roget's Thesaurus Search Form, ARTFL Project- based on 1911 edition
Library and Book Related Glossaries
- Bookbinding and the Conservation of Books: A Dictionary of Descriptive Terminology, by Matt T. Roberts and Don Etherington; part of Stanford Libraries' project CoOL
- English-Spanish / Spanish-English Language Resources for Library and Information Science Professionals, by Tony Lozano, University of Granada
Computing Dictionaries
- Dictionary of PC Hardware and Data Communications Terms, by Mitchell Shnier; an O'Reilly publication
- ILC Glossary of Internet Terms, Internet Literacy Consultants
- Netdictionary, dictionary of technical, cultural, and humorous terms related to the Internet
- NetLingo, dictionary of Internet terms
- Search Engine Terms, glossary compiled for I-Search
- Whatis.com
Other Specialized Dictionaries
- ArtLex, a dictionary of visual art
- Campbell R. Harvey's Hypertextual Finance Glossary
- Medicinenet.com
- The Semantic Rhyming Dictionary, by Doug Beeferman