the generation born in the 1980s and 1990s, especially in the U.S.
Origin of Generation Y
1990–95; patterned on Generation X
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for generation y
members of the generation of people born between the early 1980s and mid-1990s who are seen as being discerning consumers with a high disposable income
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