Usage Note
XV is the Roman numeral for fifteen, most commonly seen in siglo XV ('the fifteenth century') — the period of Columbus's voyage and the Spanish Reconquista. It is read as quince (cardinal) or decimoquinto/decimoquinta (ordinal). In Latin America, los XV or los quince is shorthand for the quinceañera celebration marking a girl's fifteenth birthday, making this numeral culturally significant beyond historical dating.
Examples
"Cristóbal Colón llegó a América en el siglo XV."
Natural Translation
Christopher Columbus reached America in the fifteenth century.

Free starter pack
Building your Spanish vocabulary?
Get the 100 most common Spanish words as a free PDF — one email, no spam.
Related Words
Explore Spanish by topic
SpanishNow
6 min read
SpanishNow
6 min read