cornerstone

a stone that is placed at the bottom of a corner in a wall and supports other stones above it; something that forms the basis or foundation of an idea, plan, etc.

piedra angular, base fundamental

• the cornerstone of sth

Collocations cornerstone of a theory · cornerstone of a policy

• The idea that everyone is equal before the law is the cornerstone of democracy.

  La idea de que todos son iguales ante la ley es la piedra angular de la democracia.

a stone that is placed at the bottom of a corner in a wall and supports other stones above it; used figuratively to refer to something important or essential for building or supporting something else.

piedra angular, base estructural

• the cornerstone of sth

Collocations cornerstone of a building · cornerstone of an organization

• The new library will be the cornerstone of our community center.

  La nueva biblioteca será la piedra angular de nuestro centro comunitario.