What do spanish use for the verb ¨to lock¨? Eg. Did you lock the door? or It was locked.

Question

What do spanish use for the verb ¨to lock¨?  Eg. Did you lock the door?   or    It was locked.

Answer

We use the verb "cerrar", using your examples: "¿Cerraste la puerta?. Estaba cerrada

Answer

Cerrar = Involves to close, there are literal meaning and figurative menaing for example:
Literal meaning. Cierra la puerta. Cierra la puerta con llave. ¿Cerraste la llave del agua?. Cierra el libro. Cierra la laptop. 
Figurative meaning. Cierra las inscripciones. Las inscripciones estan cerradas. Ella esta cerrada a nuevas relaciones. La discusión esta cerrada.

Answer

To lock = Cerrar con llave. Cerrar means to close, but not using a key. ¿Cerraste la puerta con llave? Estaba cerrada con llave.

Answer

Asegurar la puerta con llave.  "Cerrar" does not imply that you use a key.

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