Как по Английски будет a puerta cerrada

adverb

In a private way, manner, or capacity.

Примеры использования:

I must insist we speak privately

adverb

In private, without the public, newspaper reporters, etc. being there

Примеры использования:

Be held in camera the trial was held in camera because the accused was only 14 years old.

idiom

Done in a place where things can be kept secret from the public

Примеры использования:

The meeting was held behind closed doors.