Definition of Oxford English Dictionary in English:

Oxford English Dictionary

(also OED)

proper noun

  • The largest dictionary of the English language, edited in Oxford and originally issued in instalments between 1884 and 1928.

The OED was edited by Sir James Murray from its inception in 1879 until his death in 1915. A twenty-volume second edition appeared in 1989, and the dictionary has been published online since 2000, with regular updates