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keystone

English

  1. 🔊 the central building block at the top of an arch or vault
  2. 🔊 a central cohesive source of support and stability
    “faith is his anchor”

Spanish

  1. 🔊 dovelar to keystone

Similar words

key headstone anchor mainstay backbone linchpin lynchpin apse arcade arcature arch arched roof archway basis bench mark camber cardinal point ceilinged roof chief thing climax concameration concha core cornerstone