The common English name for this 15th-birthday celebration is quinceañera.
The word is borrowed from Spanish and is closely related to quince años, “fifteen years.” In Spanish, quinceañera can specifically mean the girl celebrating her fifteenth birthday, while English commonly uses the same word for the event. Context usually makes the intended meaning clear.
A quinceañera is a cultural tradition found in many Latin American countries and among Latino communities elsewhere. It often combines a formal party with symbolic family moments and, in Catholic families, may include a Mass of thanksgiving. The celebration is not identical everywhere: music, clothing, food, guest customs, and religious elements vary widely.
It is sometimes compared with a debutante ball or a sweet sixteen party, but those comparisons are only approximate. A quinceañera has its own Spanish-language history and regional traditions. It should not be treated as a universal legal or religious declaration of adulthood; its meaning is primarily cultural, familial, and ceremonial.