[ oh-nas-is, oh-nah-sis ]
/ oʊˈnæs ɪs, oʊˈnɑ sɪs /
Aristotle Socrates,1906–75, Greek businessman, born in Turkey.
Jacqueline (Lee Bou·vi·er Kennedy) [boo-vee-ey] /ˈbu viˌeɪ/, Jackie, 1929–94, wife of John F. Kennedy (1953–63) and Aristotle Onassis (1968–75).
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for onassis
/ (əʊˈnæsɪs) /
Aristotle (Socrates). 1906–75, Argentinian (formerly Greek) shipowner, born in Turkey. In 1968 he married Jacqueline, 1929–94, the widow of US President John F. Kennedy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012