noun, masculine/kinθeaˈɲeɾo/plural: quinceañeros
fifteen-year-old; teen, teenager (in general)
“¡Hoy, mi niño se ha vuelto un precioso quinceañero!” — Today, my boy has become a handsome fifteen-year-old!
Etymology tree Spanish quince años Proto-Indo-European *-yósder. Proto-Italic *-āzios Latin -āriusnom. Latin -ārius Spanish -ero Spanish quinceañero From quince años (“fifteen years”) + -ero.