Quinceañera is the Spanish word for the girl who celebrates a traditional fifteenth birthday.
The term comes from quince, meaning fifteen, and is related to quince años, meaning fifteen years. In ordinary English usage, quinceañera can refer either to the celebrant or to the celebration itself, so context determines which meaning is intended.
The feminine ending reflects the traditional focus on a girl’s fifteenth birthday. Spanish-speaking communities may use related masculine terminology for a boy’s celebration, but terms and customs vary by region and family. The word itself does not define a single universal ceremony.
A quinceañera may include a religious service, a formal reception, a court of honor, a waltz, and symbolic family rituals. None of those elements is mandatory in every modern celebration. The central identifying feature is the cultural marking of the celebrant’s fifteenth birthday.