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Thesauri & Foreign Language Dictionaries
Oxford Language Dictionaries Online This link opens in a new window
Oxford Language Dictionaries Online (OLDO) features fully searchable, completely comprehensive bilingual dictionaries, and unique study materials that provide extra help with learning and using an expanding range of languages. Offering over 4 million words, phrases and translations in Arabic, Chinese, French, German, Italian, Portuguese, Russian and Spanish. OLDO also features native speaker audio pronunciation - allowing you to hear how words actually sound. More than just a dictionary, OLDO offers a complete suite of language learning support materials for users of all levels: click-through verb tables and pronunciation charts, explanations of grammatical terms, hundreds sample letters, CVs and resumes, notes on life and culture, guidance on grammar and idiomatic usage, extensive links to other sites for further research, and more.
Dictionaries of the World: YourDictionary.com This link opens in a new window
A great preliminary jumping-off point that links to over 500 online dictionaries available in over 140 different languages. Includes multilingual as well as specialized English dictionaries, along with other linguistic tools and features for help with grammar, synonyms, translation, and more.
Google Translate This link opens in a new window
Google's free online language translation service instantly translates text and web pages. This translator supports over 50 languages.
Roget's Internet Thesaurus This link opens in a new window
Online version of the classic thesaurus of English words and phrases, also serves as a dictionary and as a quotations index.
General Dictionaries
Oxford English Dictionary (OED) Online This link opens in a new window
The OED Online contains the complete searchable text of over half a million words from the 20 volume 2nd Edition. The dictionary traces the usage of words through 2.5 million quotations, offers etymological analysis, listings of variant spellings, and shows pronunciations. 1000 new and revised entries added quarterly. NOTE: The reference to the hard copy of the Oxford English Dictionary is HUM REF PE 1625 .O87
Cambridge Dictionaries Online This link opens in a new window
Choose one of four dictionaries (Cambridge International Dictionary of English, Cambridge Dictionary of American English, Cambridge International Dictionary of Idioms, or Cambridge International Dictionary of Phrasal Verbs); then enter a word to read a definition.
Dictionary (Merriam-Webster Online) This link opens in a new window
This online version of Merriam-Webster's Collegiate Dictionary, Eleventh Edition (2003), searches both words and phrases, verifies spelling, pronunciation, definitions, and the earliest use of English language words.
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