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In page New Zealand English:

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Another source of well-cited New Zealand words and phrases is the Collins English Dictionary, first published in 1979 by HarperCollins.[citation needed] Though this dictionary primarily draws from the Bank of English, a corpus of English literature maintained by the University of Birmingham with HarperCollins' support[10] since 1980, a New Zealand advisor informs the content of each edition.[citation needed] The first advisor to perform this role was Professor Ian Gordon of Victoria University, who was succeeded by Professor Elizabeth Gordon (no relation)[11] of the University of Canterbury in 2003.[12][13] Elizabeth Gordon has since stepped down from the role.[13]