- A celebration of the fifteenth birthday of a Hispanic or Latina girl, typically including a Roman Catholic Mass and often serving as a social debut.
- The girl whose birthday is celebrated at a quinceañera.
Origin of quinceaneraAmerican Spanish from Spanish feminine of quinceañero fifteen years old quince fifteen ( from Latin quīndecim ; see penkwe in Indo-European roots.) año year ( from Latin annus ; see at- in Indo-European roots.) -ero adj. suff. ( from Latin -ārius )