An indispensable companion for both home and office, this all-in-one reference contains comprehensive and up-to-date coverage of standard English, based on the resources of the Oxford English Dictionary, along with comprehensive coverage of Australian English based on the resources of the Australian National Dictionary, the historical record of the more than 12,000 words, senses, and idioms that make up the Australian contribution to the English language. This innovative reference contains over 20,000 dictionary headwords and 150,000 similar and related words in the thesaurus section to choose from, as well as hundreds of new entries added that reflect the important areas of contemporary word creation.