In a quinceañera, the Spanish word meaning the celebrant’s age of fifteen is “quince.”
The term comes from quince años, meaning “fifteen years.” Quince is the number fifteen, while años means years. The feminine noun quinceañera refers both to the girl reaching fifteen and, in common usage, to the celebration held for her.
The age is central because the tradition marks a major life transition rather than simply another birthday. In many families, the event combines religious observance, formal clothing, a ceremonial court, music, dancing, and a large reception.
Quince should not be confused with quinceañera. Quince is only the number; quinceañera is the person or celebration. Spanish spelling also matters: quinceañera uses ñ, while quince does not.