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Reference Shelf

Colleges | Dictionaries | Directories | Encyclopedias | Maps | Tax Forms | Weather


English | Other Languages | Sciences | Other | Find More

English Language

Oxford English Dictionary Stanford only

Merriam Webster's Collegiate Dictionary Stanford only Part of the Encyclopaedia Britannica Online

Webster's Third New International Dictionary, Unabridged Stanford only

Middle English Dictionary

Old English Dictionary

Select English Language Dictionaries and New Word Lists — a list of resources at Stanford.

Roget's Thesaurus — ARTFL Project:ROGET form: "Search the headwords or full text of Roget's Thesaurus version 1.02 (supplemented: July 1991)."

Roget's II: The New Thesaurus, Third ed. 1995

Acronyms and abbreviations in the Network Acronym and Abbreviation Server (Ireland)

WordNet — "an on-line lexical reference system whose design is inspired by current psycholinguistic theories of human lexical memory. English nouns, verbs, adjectives and adverbs are organized into synonym sets, each representing one underlying lexical concept. (Cognitive Science Laboratory at Princeton University)

Other Languages


Esperanto to English and English to Esperanto — from the Esperanto League for North America, Inc.


English-Estonian-English Dictionary with more than 17,000 words from the Institute of Baltic Studies.


French-English Dictionary Form to search about 75,000 terms, from the ARTFL Project, University of Chicago.


English/German Dictionary


Perseus Dictionaries & Lexica including Liddell & Scott.


Online Hebrew Dictionary requires I.E. 5.0 or higher and Hebrew language capability


Garzanti Linguistica has Italian, Italian/English, and Italian/French dictionaries. You must register, but it is free. There is also access to the Opera del vocabolario italiano (historical dictionary).


Perseus Dictionaries & Lexica including Lewis & Short.


Norwegian dictionaries. Look up words in Bokmalsordboka (formal Norwegian) or Nynorskordboka (new Norwegian) or both. Strictly Norwegian to Norwegian.


Internet Living Swahili Dictionary


McGraw Hill Dictionary of Scientific and Technical Terms


Beilstein Dictionary - for users of the Beilstein Handbook of Organic Chemistry.


Free On-line Dictionary of Computing - "searchable dictionary of acronyms, jargon, programming languages, tools, architecture, operating systems, networking, theory, conventions, standards, mathematics, telecomms, electronics, institutions, companies, projects, products, history, in fact anything to do with computing."

Geography and Earth Sciences

AGI (Association of Geographic Information) GIS (Geographical Information Systems) Dictionary — "includes around 300 terms which either relate directly to GIS or which GIS users may come across in the course of their work." University of Edinburgh

Association of Engineering Geologists Compendium of Environmental Acronyms

Lexicon of Clay Minerals includes definition, formula, density, CAS number, hardness, and chemical data for each mineral.


American Sign Language

A Basic Dictionary of ASL Terms

Bookbinding and Preservation

Bookbinding and the Conservation of Books: A Dictionary of Descriptive Terminology

For Finding More Electronic Dictionaries

Dictionaries page from the Librarians Index to the Internet.

OneLook Dictionaries - offers the ability to search many dictionaries at once, but also has links to other dictionaries. — links to many dictionaries, translation service, word games and much more.

Dictionaries page of Internet Public Library — maintained by SILS at the University of Michigan.

Yahoo's list of dictionaries

iLove Languages — aims to be "a comprehensive catalog of language-related Internet resources. Here you will find online language lessons, translating dictionaries, programs to aid you in learning a language, and more."


Last modified: December 6, 2011

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