The Spanish word quinceañera names both a girl celebrating her 15th birthday and the traditional celebration itself. The word is derived from quince, meaning 15, with a feminine ending.
In ordinary usage, the term can refer to the honoree, the party, or the broader cultural tradition. English-language writing often retains the Spanish spelling, including the ñ. The masculine counterpart, quinceañero, is used in some contexts for a boy celebrating a 15th birthday.
A quinceañera may include a Mass or other religious service, a formal entrance, a court of attendants, a father-daughter dance, a symbolic gift, and a banquet. These features are customary rather than mandatory, so celebrations vary considerably by country, religion, family, and budget.
The word is not simply another name for any birthday party. Its meaning points to a culturally specific milestone whose details developed differently across Spanish-speaking communities and their diasporas.