The Spanish number quince supplies the first part of the word quinceañera.
Quince means fifteen in Spanish, and the term quinceañera is connected to the traditional celebration of a girl’s 15th birthday. The ñ in quinceañera is pronounced as the ny sound found in Spanish words such as mañana. In English-language writing, the accent mark is sometimes omitted, although quinceañera is the standard Spanish spelling.
The word can refer both to the young woman being honored and, in common English usage, to the celebration itself. Spanish usage may distinguish the person from the event through context, while English often uses quinceañera for both.
The name is therefore descriptive rather than the name of a particular dance, garment, or religious rite. Regional traditions add different names and practices, but the number fifteen remains the defining link between the word and the milestone birthday.