Oxford English dictionary The OED presents in alphabetical series the words that have formed the English vocabulary from the time of the earliest records down to the present day, with all the relevant facts concerning their form, sense-history, pronunciation, and etymology. It embraces not only the standard language of literature and conversation, whether current at the moment, or obsolete, or archaic, but also the main technical vocabulary, and a large measure of dialectical usage and slang. This online edition contains the complete A to Z sequence of the Second Edition, its three-volume Additions Series, and also draft material from the revision programme, which represents the latest progress towards the Third Edition.