Technical Writing: Encyclopedias, Dictionaries

Dictionary.com provides millions of English definitions, spellings, audio pronunciations, example sentences, and word origins. Dictionary.com also offers a Word of the Day, a Synonym of the Day, word games and solvers. The thesaurus provides over 550,000 synonyms.

Excellent information on researching and writing papers. One of the best writing sites on the web, from Purdue University. Writing a research paper?

Reviews rules of English usage and composition. An online version of William Strunk, Jr.'s 1918 classic reference on writing English.

Translate terms from one language to another. (With perhaps a few mistakes, because this is computer translation. Try translating the result back into English to check for possible errors or misunderstandings.)

Don't want to repeat a word several times? Look up synonyms here.