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Oxford English Dictionary

Home page of Oxford English Dictionary

600,000 words … 3.5 million quotations … over 1000 years of English

The Oxford English Dictionary (OED) is widely acknowledged to be the most authoritative and comprehensive record of the English language in the world. It is an unsurpassed guide to the meaning, history, and pronunciation of 600,000 words— past and present—from across the English-speaking world.

As a historical dictionary, the OED is very different from dictionaries of current English, in which the focus is on present-day meanings. You’ll not only find present-day meanings in the OED, but also you’ll find the history of individual words, and of the language—traced through 3.5 million quotations, over 100 years of English.

Every three months the OED Online database is updated.