Quince is a common informal Spanish nickname for a quinceañera celebration.
The shortened term comes from quince años, the phrase associated with a girl’s fifteenth birthday. In many Spanish-speaking and Latino communities, people may say “la quince” or simply “quince” when discussing the party, planning the event, or referring to an invitation.
The word should be understood from context because quince also means the number fifteen in Spanish. English speakers may use quince as a cultural loanword, but quinceañera remains the more widely recognized term for the celebration and the honoree.
Naming conventions differ by country and family. Other expressions include fiesta de quince años and quinceañera, so no single label is used everywhere.