Dictionaries of New Zealand English

The first comprehensive dictionary dedicated to New Zealand English was probably the Heinemann New Zealand dictionary, published in 1979. Edited by Harry Orsman, it is a comprehensive 1,300-page book, with information relating to the usage and pronunciation of terms that were both widely accepted throughout the English-speaking world and those peculiar to New Zealand. It includes a one-page list of the approximate date of entry into common parlance of many terms found in New Zealand English but not elsewhere, such as "haka" (1827), "Boohai" (1920), and "bach" (1905).
In 1997, Oxford University Press produced the Dictionary of New Zealand English, which it claimed was based on over forty years of research. This research started with Orsman's 1951 thesis and continued with his editing this dictionary. To assist with and maintain this work, the New Zealand Dictionary Centre was founded in 1997. Since then, it has published several more dictionaries of New Zealand English, culminating in the publication of The New Zealand Oxford Dictionary in 2004.
A more light-hearted look at English as spoken in New Zealand, A personal Kiwi-Yankee dictionary, was written by the American-born University of Otago psychology lecturer Louis Leland in 1980. This slim volume lists many of the potentially confusing and/or misleading terms for Americans visiting or emigrating to New Zealand. A second edition was published during the 1990s.