cumpleaños

birthday

noun koom-pleh-AH-nyohs Rare

Origin: From cumplir (to fulfill, to turn [an age]) + años (years).

Usage Note

Cumpleaños is invariable — the singular and plural are identical (el cumpleaños, los cumpleaños). This is because it already ends in -s. The typical greeting is ¡Feliz cumpleaños! The related verb phrase cumplir años means 'to have a birthday' (Hoy cumplo treinta años = Today I turn thirty).

Examples

"Mañana es mi cumpleaños."

Natural Translation

Tomorrow is my birthday.

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