The stage curtain is an essential part of any theatrical production. It is what separates the stage from the audience and adds an element of surprise and drama to any performance. However, there are many other words that can be used to describe the stage curtain. Some of these synonyms include the act drop, the proscenium curtain, the theater drapes, the backdrop, and the stage border. Each of these terms describes a different aspect of the stage curtain, but all serve the same purpose of adding an element of suspense and intrigue to any theatrical production. Whatever you call it, the stage curtain remains an integral part of any performance.