keystone

• Substantivo que designa o elemento central ou essencial que garante apoio e estabilidade, ou a pedra no topo de um arco que mantém toda a estrutura unida.

A noun referring to a central, crucial element that provides support and stability, or the central stone at the top of an arch that locks the structure together.

1. Central support or foundationB2formal

   A central cohesive source of support and stability that holds something together.

   Apoio ou base central

   • Trust is the keystone of any strong relationship.
   • Education is often considered the keystone of a successful society.
   • The keystone of his argument was based on solid evidence.

   Sinônimosanchorbackbonebasisbedrockcornerstonefoundationlinchpinmainstaypillar

2. Architectural elementB2formal

   The central wedge-shaped stone at the top of an arch or vault that locks the other stones in place.

   Pedra angular

   • The ancient Romans perfected the use of the keystone in their arches.
   • The keystone was carefully carved and placed to complete the bridge.
   • Without the keystone, the arch would collapse under its own weight.

   Sinônimoskey