Acronyms
Military, (SHS) Acronym for the Web, Abbreviations, Acronyms, and Initialisms, AbbreviationZ, ACRO.IT Acronym Directory, Acronym Finder, Acronym Guide, Acronym Master List for LANL, Acronym Search, Acronym Server Simplified, Acronyms and Abbreviations
By Subject
Aerospace, Agriculture, Architecture, Audio and Video, Automotive, Business, Computers, Construction, Education, Film
Etymology
A Comparative Dictionary of Indo-Aryan Languages, A Word with You, Altaic Etymology, American Dialect Society, An Etymological Dictionary of Classical Mythology, Businessballs.com - Etymology of Clichés, Expressi, Dave Wilton's Etymology Page, Etymologic, Etymologically Speaking, Etymology
Pronouncing
American Homophones, AsifSound vs. Spelling - American Dictionary, Dictionary of English Phonesthemes Part 1, Roger's Reference - A Complete Homonym and Ho, The CMU Pronouncing Dictionary
Rhyming
Alcor Rhyming Dictionaries, AnalogX - Rhyme, AnsMe.com Rhyming Dictionary, Lexical FreeNet, Rhymesaurus, Semantic Rhyming Dictionary, Word Central, WriteExpress Online Rhyming Dictionary
Sign Languages
ASL Browser, ASL Dictionary, ASL Dictionary by Subject, ASL Fingerspelling, German Sign Language Dictionary on Psychological T, HandSpeak, Latviesu Zimju Valodas Vardnica, Medical ASL Phrasebook, Sign Language Dictionaries Online, SignBank
Symbols
Swastika, Blissymbol Dictionary, Byzant - Esoteric Symbols, Dictionary of Symbolism, Review of Liungman's Dictionary of Symbols, Symbols.com
Vocabulary Lists
Word-a-day, A Word A Day - Today's Word, Commonly Misspelled Words in English, Daily Vocabulary Test, Dave's Choice Words, English Words from Chinese, Exploring Words, Grandiloquent Dictionary, Heenan's Universal Dictionary, International House of Logorrhea, MT Desk
1000Dictionaries.com
Links to online language dictionaries and subject dictionaries.
A-Z-Dictionaries
Descriptions and links to free online dictionaries, the Merriam-Webster dictionary, electronic dictionary products, dictionary downloads and software and ideas for saving money.
AllDictionaries.com
Categorized index of language and subject dictionaries.
AllWords.com
Features two modern English dictionaries, multilingual search, and translation. Also features a guide to language sites on the web and a language discussion forum.
Cambridge International Dictionaries
Free online dictionary from Cambridge University Press.
Campus Program: Language Dictionaries
A compilation of a large number of dictionary websites grouped by language.
Collection of Web-Dictionaries
Sorted list of online dictionaries of more than 50 languages, mostly bilingual.
Cooldictionary.com
Free edition of a complete Webster dictionary. Fully crosslinked.
DICT Development Group
A WWW interface to several freely available on-line dictionaries, including Webster's 1913, the Jargon File, the US Gazetteer, and Easton's Bible Dictionary.
Dictionaries and Translation
List of links to dictionaries on the Internet.
Dictionaries on the Web
Link collection -- over 100 links to various dictionaries of about 40 languages.
Dictionaries, Lexica and Lexical Resources
Collection of links to various online dictionaries and other lexical references.
Dictionary Building Software for Reporters
Software program for realtime reporters and captioners that lists many diverse vocabulary lists.
Dictionary Link
A directory of free online language resources such as dictionaries, thesauruses, language translators, and encyclopedias.
Dictionary of Comprehension
A Dictionary of Comprehension in different languages.
Dictionary of Difficult Words
Search or browse this dictionary of more than 13,000 words.
Dictionary Society of North America
An international organization of librarians, booksellers, translators, linguists, publishers, writers, journalists, and collectors. Founded in 1975 to further research in dictionary making, study, collection, and use. Member of the American Council of Learned Societies.
Dictionary.com
Free online dictionary search, translator, word of the day, crossword puzzles and word games, and vocabulary learning resources for many languages.
Dictsearch
Search a variety of dictionaries including monolingual, bilingual, and specialty dictionaries.
Digital Media Knowledge Base
Free service including dictionary search and tutorials on web development tools.
Eurodicautom
The European Commission's multilingual term bank. Particularly rich in technical and specialized terminology related to European Union policy.
Free Dictionary and Free Translation
Collection of free dictionaries and translation sites. Supports searching all dictionaries with just one mouse click.
Globalization.com: On-line Dictionaries and Glossa
Directory of monolingual, bilingual, and multilingual dictionaries and glossaries, arranged by language.
Glossaries
Collection of more than 2400 links to glossaries and dictionaries.
Glossaries by Language
Directory of multilingual dictionaries and dictionaries on specific subjects, alphabetized by language.
High Definition Dictionary
Mixed collection of drug terminology with an apparently arbitrarily selected mix of other, unrelated terms. Dictionary accepts contributions of new terms.
HyperDictionary.com
Includes a thesaurus and searchable dictionaries for English, computers, dreams and medicine.
Hypertext Webster Gateway
WWW interface to multiple English dictionaries.
Information Please Dictionary
Infoplease's free online dictionary. Features almanacs, an encyclopedia, and an atlas.
KnowPlay?
Simple and integrated access to dictionaries, thesauri, encylopedias, and quotation databases.
Lexicate Online Dictionary
Text-only online dictionary directory of language (e.g. English, French and Spanish) and subject (e.g. Science, Computer and Medical) dictionaries.
Lighting Design Terminology
Explanations of terms used in architectural lighting and lighting simulation.
Merriam-Webster OnLine
A free, searchable on-line dictionary and thesaurus, word games, a word of the day, and many other English language and vocabulary reference tools and resources.
On-Line Dictionaries
Online specialty dictionaries for English, Russian, German, Finnish and Latin.
OneLook Dictionaries
Look up a word or term in an Internet dictionary or glossary. Free search access to a frequently updated database of words, terms, names, and acronyms.
Online Dictionaries, Translators and References
Online dictionaries, translators, references accessable from a small pop-window. Requires use of a browser with Javascript enabled.
Oxford Advanced Learner's Dictionary
Allows users to search, free of charge, for entries in the latest (year 2000) edition of the Oxford Advanced Learner's Dictionary.
Planet Translation
Directory of dictionaries, including unilingual, multilingual, and topical resources.
Quotations: The Yale Dictionary
Project to create an searchable online database and a quotation dictionary from Yale University Press.
Research-It
Includes several dictionaries and a thesaurus as well as online tools for shipping and mailing, currency exchange, and language translation.
Skeptic's Dictionary
Skeptical definitions and essays on occult, paranormal, supernatural and pseudoscientific ideas and practices with references to the best skeptical literature.
Strange Dictionaries
Free online versions of the Dictionary of One-Letter Words, the Dictionary of All-Vowel Words, the Dictionary of All-Consonant Words, and other strange dictionary resources.
Terminological Information System
A simplified version of the European Union terminological database.
The Alternative Dictionaries
Includes a list of slang terms and phrases in various languages.
The Century Dictionary Online
Free 500,000 word dictionary of English with an encyclopedia and world atlas. Uses DjVu and JPEG formats to display page images. Has headword lookup and full text search of 22 million words of underlying text.
The Glossarist
Searchable directory of glossaries and topical dictionaries containing terms and definitions on hundreds of subjects.
The Newbury House Online Dictionary
Search over 40,000 entries to get clear concise definitions and when available related pictures.
The Online Dictionary List
A large directory of online dictionaries, both in English and bilingual, including specialist dictionaries.
The Superhero Dictionary
Each entry compares a superhero's name with its real life meaning and includes comparison pictures and pronunciations.
Voycabulary
Online dictionary and thesaurus web linking lookup reference tool.
Word Assault
Looks up multiple words simultaneously using several databases including Webster's, Easton's, Wordnet, and the Devil's Dictionary.
Word Central
Student dictionary and rhyming dictionary online at Merriam-Webster's website. Daily Buzzword by subscription.
Word Spy
Site dedicated to recently coined words and existing words revived into modern usage.
Worthless Word for the Day
Obscure, abstruse and/or recondite word, especially one not falling into medical terms, foreign monetary units, foreign units of measure, legal terms, or professional jargon of any type.
Xlation.com Glossary Database
More than 1682 separate glossaries, linked by topic and by ISO 639-2 language codes.
yourDictionary.com
Comprehensive index of on-line dictionaries in more than 200 different languages. Includes an index of on-line grammars, word of the day by email, and several pages of linguistic fun.