Dictionaries

The American Heritage Dictionary of the English Language [ Kids/Teens/Mature Teens ] - Provides defitions for 350,000 words.
ArtLex [ Kids/Teens/Mature Teens ] - Dictionary of visual art defines more than 3,000 art-related terms. Also includes a comprehensive collection of artwork and famous quotes.
Dictionary Online: Web Directory [ Kids/Teens/Mature Teens ] - Comprehensive collection free online dictionaries, thesauri, and glossaries organized by subject, language, and interest.
Dictionary.com [ Kids/Teens/Mature Teens ] - Online English dictionary, thesaurus and reference guide. Includes word games, online translator, and word of the day feature.
Dictionary.com/Ask Doctor Dictionary - Free online English dictionary and reference guide.
DinoDictionary.com [ Kids/Teens/Mature Teens ] - Features profiles of over 300 known dinosaurs along with audio files that demonstrate how to pronounce their names.
Fact Monster [ Teens/Mature Teens ] - An online dictionary with definitions and information about the history of over 125,000 words.
Little Explorers [ Kids ] - Picture dictionary gives definitions, pictures, and Internet links for more than 1,100 words. Includes English and French, German, Portuguese, and Spanish to English dictionaries.
PSEUDOdictionary [ Teens/Mature Teens ] - Defines everyday words including slang, webspeak, and colloquialisms.
The Skeptic's Dictionary [ Teens/Mature Teens ] - Definitions and essays on occult, paranormal, and supernatural ideas and practices from the point of view of someone who is a sceptic, that is, does not believe in these things.
USM's Dictionary [ Kids/Teens/Mature Teens ] - Find thousands of dictionaries for any language or profession.
Wordsmyth [ Kids/Teens/Mature Teens ] - A dictionary and thesaurus in one. Also gives parts of speech and examples for more than 50,000 words.
Xrefer [ Kids/Teens/Mature Teens ] - Combines a collection of encyclopedias, dictionaries, thesauri, and quotations.