The lock mechanism that closes a door, chest, or drawer with a key
Encoding Strategies:
linguistic
visual

Cerradura means lock and is cerrar0 turned into a noun. It's the "thing that closes," like what you close a door with, the lock.
cerradura
lock
The metal locking mechanism fixed on a door, chest, or drawer that you close and open with a key.
La cerradura de la puerta está rota y no cierra bienThe door lock is broken and won't close properly
Metió la llave en la cerradura y la giróHe put the key in the lock and turned it