Reference Shelf: Dictionaries & Thesauri

Oxford English Dictionary A full-text database that provides the meaning, history, and pronunciation of over half a million English words, both present and past.

Oxford Reference Online This site provides the full-text to over a hundred well-known Oxford dictionaries and reference books.

Bartleby.com A great collection of free reference sources, including Roget's Thesauri and the American Heritage Dictionary of the English Language

Cambridge Dictionaries Online Online searching (singly but not simultaneously) of Cambridge International Dictionary of English , Cambridge Dictionary of American English , Cambridge International Dictionary of Idioms , and Cambridge International Dictionary of Phrasal Verbs . Includes pronunciation, parts of speech, and definition.

Merriam-Webster's Collegiate Thesaurus Includes short definition, synomyms, antonyms, related words and contrasted words.