How to Say "locking mechanism" in Spanish
The Spanish word for “locking mechanism” is “cerradura” — A2 level. This is a very common word in everyday Spanish.

Examples
La llave no funcionaba con esta cerradura vieja.
The key didn't work with this old lock.
Necesitamos llamar a un cerrajero para cambiar la cerradura de la puerta principal.
We need to call a locksmith to change the lock on the front door.
Ten cuidado, la cerradura está rota y la puerta no cierra bien.
Be careful, the lock is broken and the door doesn't close well.
Feminine Noun Ending
Most Spanish nouns that end in -dura, like cerradura, are feminine. Remember to use 'la' or 'una' before it.
Confusing 'Cerradura' and 'Cierre'
Mistake: “Using 'cierre' when referring to a door lock.”
Correction: 'Cierre' means 'closure' or 'zipper.' Use 'cerradura' specifically for the mechanical device on a door or chest.
Related Translations
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