situated or taking place in the area of a stage not visible to the audience; "offstage noises"
behind the scenes; not on stage; "the actors were waiting offstage"
A motion near the closest side of the stage from the middle.
areas on the stage which are not seen by the audience, like the wings or the crossovers, where action can take place and be heard by the audience, or where actors can wait for their entrances.
The area toward the wall of the stage.