A quinceañera traditionally celebrates a girl reaching age 15. The Spanish word quinceañera refers both to the celebrant and, commonly, to the celebration itself.
The event marks a transition from childhood toward young womanhood. Families may hold a religious service, a formal reception, or both. Customs differ widely by country, region, family, and religion, so there is no single required format.
The celebration is especially associated with Latin American communities and their diasporas. Some families emphasize traditional symbols such as a formal dress, a court of honor, special dances, and a ceremonial presentation. Others adapt the event with modern music, themes, or nonreligious ceremonies.