This question is based on General Literary Principles.The sides of a stage are called
Answer Details
The sides of a stage are commonly called "the wings." They refer to the areas offstage to the left and right of the acting area where actors wait to enter the stage, as well as the storage and preparation areas for props and scenery. The term "wings" is thought to have originated from the early days of theater when stages were surrounded by curtains that resembled wings.