piedra angular

Definiciones

1. cornerstone (a stone forming the base at the corner of a building)
   feminine
2. cornerstone (that which is prominent, fundamental, noteworthy, or central)
   feminine, figuratively

Equivalentes

Ejemplos

“Aquellos años marcaron el debut de los títulos originales, que se convirtieron instantáneamente en piedras angulares del género.”

Those years marked the debut of the original titles, which instantly became cornerstones of the genre.

Nivel CEFR