In quinceañera, the Spanish word quince means fifteen.
The term comes from the age at which the traditional celebration takes place. Quince is the ordinary Spanish cardinal number for 15, while quinceañera is related to a young woman’s fifteenth-birthday observance. The ñ in quinceañera is a Spanish letter pronounced differently from plain n.
English-language writing sometimes drops the accent mark or replaces ñ with “n,” producing quinceanera. The unaccented spelling is common in informal digital contexts, but quinceañera is the standard Spanish spelling. The feminine ending reflects the traditional female honoree.
The number should not be confused with the age of legal adulthood, which differs by country. A quinceañera is a cultural coming-of-age tradition, and its exact program can include religious, family, and entertainment elements depending on local custom.