kiwiPronunciation: /ˈkiːwiː, -wi/Translate kiwi | into Italian | into Spanish Definition of kiwi noun (plural kiwis) 1a flightless New Zealand bird with hair-like feathers, having a long downcurved bill with sensitive nostrils at the tip. Family Apterygidae and genus Apteryx: three species 2 (Kiwi) informal a New Zealander. Origin: mid 19th century: from Maorikiwi in other Oxford dictionaries Definition of kiwi in the US English dictionary