proscenium wall, proscenium - the wall that separates the stage from the auditorium in a modern theater

forestage, proscenium, apron - the part of a modern theater stage between the curtain and the orchestra (i.e., in front of the curtain)

stage - a large platform on which people can stand and can be seen by an audience; "he clambered up onto the stage and got the actors to help him into the box"

theater, theatre, house - a building where theatrical performances or motion-picture shows can be presented; "the house was full"

theater curtain, theatre curtain - a hanging cloth that conceals the stage from the view of the audience; rises or parts at the beginning and descends or closes between acts and at the end of a performance

thrust stage - a theater stage that extends out into the audience's part of a theater and has seats on three sides