Susan Butler AO https://www.suebutler.com.au was the editor of the Macquarie Dictionary, Australia’s national dictionary, and was largely responsible for the selection and writing of new words. She retired as editor at the end of 2017. She has written the Dinkum Dictionary, published in its third edition in 2009. In 2014 she wrote The Aitch Factor, a commentary on usage matters in Australian English. Her latest book, Rebel without a Clause, comes out in October.