Standard/Foreign Language

• Your Dictionary.com - Standard dictionary that also offers thesaurus entries and idioms

• Bilingual and Multi-lingual - From Eastern Michigan University's Linguist List; wide variety of dictionaries from English to other languages, translators, and dictionaries of dialects

New words/Slang

• Word Spy - Dictionary of neologisms (new words) including "cookprint" and "lifecasting"; includes links to articles using the words

• Slangsite.com - up-to-date and comprehensive dictionary of slang, centering on youth slang and webspeak

Subject-specific

• Medline-Plus Medical Dictionary - a feature of the National Institutes of Health-created site

• Law Dictionary - FindLaw's dictionary; use the search box on the upper right

• Talking Dictionary of Genetic Terms - genome.gov's        glossary; many terms include illustrations

• Glossary of Literary Terms - from the Meyer Literature    section of the site of publisher Bedford/St. Martin's

• Stanford Encyclopedia of Philosophy - from Peter Abelard to zombies

• Glossary of Art Movements - from infoplease.com; brief entries on approximately thirty movements in the fine arts

• Finance Reference: glossaries - Yahoo directory of finance and economics glossaries

• Biodiversity Glossary - World Resources Institute glossary

• FAO Fisheries Glossary - from the Food and AgricultureOrganization of the U.N.; searchable in addition to browsable

• Webopedia.com - computer and Internet terms; scroll down for search box

• Dictionary of Sex Terminology - including medical terminology, porn jargon, and slang