The traditional Spanish term for the girl celebrating her fifteenth birthday is quinceañera.
The word is feminine and is commonly used for both the celebrant and the celebration. In Spanish-speaking usage, quinceañero can refer to a boy reaching fifteen, although quinceañera is the much more internationally recognized term because the tradition has historically centered on girls.
A quinceañera may take part in a formal ceremony, wear a special dress, and be accompanied by relatives or a court of honor. Depending on the family, the day can include a religious service, a reception, choreographed dances, and symbolic presentations.
Terms for other participants are different. Damas are female members of the court, chambelanes are male attendants, and padrinos or madrinas may be sponsors or honored adults. These roles should not be mistaken for the name of the birthday celebrant.