Oxford English Dictionary is widely recognized, the most authoritative and comprehensive record of the English language, which traces the historical evolution and use of English vocabulary. Oxford English Dictionary Online not only provides the latest content in the full version of Oxford English Dictionary, but also includes Historical Thesaurus of the Oxford English Dictionary, bringing unprecedented depth and breadth to research work. 

Key Features: 

More than 600,000 word definitions show the use of words throughout English history through more than 3 million citations. 

With Historical Thesaurus of the Oxford English Dictionary, users can explore topics, meanings, and ideas. 

Covers British English, American English and all other types of English worldwide, as well as a variety of usages including formal and slang. 

It is updated four times a year to include thousands of new and revised interpretations. 

The benefits of digitalization include: access to powerful and flexible search options, as well as new ways of browsing OED; This is true from chronology and citation sources to the Historical Thesaurus of the OED. 

Personalize My OED saves search results and entries for later use.