Manukau (?m??n??ka?) n (Placename) a city in New Zealand, on Manukau Harbour (an inlet of the Tasman Sea) near Auckland on NW North Island. Pop: 326 200 (2004 est)Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014