Other
Wordsmyth: The Educational Dictionary Thesaurus
This site not only is a dictionary and a thesaurus, but it also has brain teasers and games.
Enchanted Learning
Enchanted Learning: Little Explorers Picture Dictionary
Delve into this wonderfully illustrated and comprehensive picture dictionary. Research up to 1,905 illustrated entries. Each word is used in a meaningful sentence.
Other
Dictionary.com
Look up any word by typing the entry at the top. Includes word of the day, links to foreign language dictionaries, and link to a thesaurus. L.9-10.4c References, L.9-10.4d Verify meaning, L.11-12.4c References, L.9-10.4d Verify meaning,...
Other
Visuwords: Visuwords Online Graphical Dictionary and Thesaurus
Visuwords is an online graphical dictionary which you must see to believe! It is highly interactive and allows you to create diagrams, to drag and drop, pass over words to see their meanings, and much much more. It can be as easy or as...
The Write Place
Literacy Education Online: How to Use a Thesaurus
A good overview of what a thesaurus is and how best to use one. Also includes the difference between the two forms of thesauri and explains how to choose the correct synonym to use. L.9-10.4c References
Other
Encyberpedia: The Living Encyclopedia
An exhaustive list of links to dictionaries, encyclopedias, glossaries, languages and thesaurus on the web. L.9-10.4c References, L.9-10.4d Verify meaning, L.11-12.4c References
Other
Alpha Dictionary: Most Often Misspelled Words in English
Listed alphabetically, these commonly misspelled words often find their way into our writing! Here are the correct spellings, with brief tips for remembering how to write these words correctly. In addition, use the links of the left to...
Bartleby
Bartleby.com: Reference
Site provides links to a wide variety of reference tools, including encyclopedias, dictionary, thesaurus, quotation books, and guides to English usage. L.11-12.1b Usage issues
University of Chicago
The University of Chicago: Roget's Thesaurus Search Form
Enter any word and get tons of words that mean the same thing (or close to it)
Other
The Phrase Finder: Home Page
"A professional writers' resource from The Phrase Finder for generating ideas for headlines, advertising copy, song lyrics, etc." Just type your word and the phrase finder will find a phrase to match it. L.9-10.4c References, L.9-10.4d...
English Club
English Club: Learn English: Vocabulary: Topic Vocabulary Reference
Links to information and lists of English words and phrases by category. Includes information on the difference between a dictionary and thesaurus, synonyms and antonyms, confusing words, figures of speech, eponyms, euphemisms, sayings,...
Sophia Learning
Sophia: Antonyms
This lesson defines antonyms, explains where to locate them in a dictionary and thesaurus, discusses why it is helpful to know antonyms, and provides examples. Offered in both text and audio formats.
Cyberbee
Cyber Bee: Ready Reference
This site is a tool to help students hone their reference skills.