- (among Hispanics in Latin America and the U.S.) a celebration of a girl's 15th birthday, marking her transition from childhood to maturity.
Origin of quinceañera
1970–75; < Spanish, feminine of quinceañero 15-year-old < quince 15 (< Latin quīndecim) + año year (< Latin annus) + -ero adj. suffix (< Latin -ārius)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018