Jake says "Attendez une minute! Vous just de le prendre that right out de son écrin sans déclencher off aucune alarme!"What does écrin mean?

In French, écrin means a case or box used to hold and protect a valuable object, especially jewelry. In the sentence, the object is taken “out of its écrin,” so case is the best match. “Screen,” “lock,” and “purse” do not fit that meaning.

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