The Spanish word quince, meaning “fifteen,” appears in the name quinceañera.
Quinceañera is built from quince, “fifteen,” and a feminine form associated with a young woman. In everyday English, the word can refer both to the celebrant and to the celebration connected with her fifteenth birthday. The masculine form quinceañero is also used in some contexts.
The number is central because the tradition marks a significant life transition rather than an ordinary birthday party. Its customs can include a church service, formal clothing, a court of honor, symbolic gifts, and a reception with dancing. The details are not identical across countries or families.
The word is sometimes written without the ñ as quinceanera when Spanish keyboard characters are unavailable. That spelling changes the typography but not the underlying Spanish term. Quince is also a separate Spanish noun meaning “fifteen,” not a shortened name for the entire ceremony.