Quinceañera is the Spanish word for the fifteenth birthday celebration featured in the film Quinceañera.
The term refers both to the celebration and, in common usage, to the girl or young woman being honored. The word is related to quince, meaning fifteen, and carries the feminine ending -añera in this cultural usage.
The celebration is especially associated with Latin American communities and the Latin American diaspora. Its customs vary by country, family, religion, and generation, so there is no single universal ceremony or schedule.
The 2006 film uses the celebration as the setting for a story about family expectations and adolescence. Its title is therefore a cultural reference, not the name of a fictional place or organization.