staging

• apron: the area between the front curtain and the edge of the stage
• arena stage: a type of stage without a frame or arch separating the stage from the auditorium, in which the audience surrounds the stage area.

  
• auditorium: the part of the the theatre accommodating the audience during the performance, also known as the 'house' [think house lights]
• black box: a one room theatre, without a proscenium arch; interior is painted black, including walls, floor, ceiling and any drapes are also black.
• centre stage: the centre section of the stage.

  
• down stage: the front part of the stage, in front of the centre stage area close to the audience.

  
• entrance: the part of the set through which actors can walk onto the stage.
• end on: traditional audience seating layout where the audience is looking at the stage from the same direction. this seating layout is that of a Proscenium Arch theatre.

  
• exit: the part of the set through which actors can leave the stage.
• fourth wall: the invisible wall of a ser through which the audience sees the action of the play.
• proscenium: a frame or arch separating the stage from the auditorium, creating a picture frame or an imaginary fourth wall through which the audience experience the illusion of spying on characters.
• sight lines: imaginary lines of sight that determine what areas of the stage are visible to the audience from any given seat in the house.
• site - specific: any type of theatrical production designed to be performed at a unique, specially adapted location other than a standard theatre.
• stage left: the left side of the stage from an actor standing facing the audience. the audience's right side.

  
• stage right: the right side of the stage for an actor standing, facing the audience. the audience's left side.

  
• staging: the use of the stage as a design element, considering: choice of stage, positioning of entrances / exits, set items, stage furniture, levels, awareness of audience, creating an appropriate space for performers . audience.
• in the round: an acting area or stage that may be viewed from all sides simultaneously.

  
• thrust: a stage that extended into the audience area, with seats on three sides of the peninsula-shaped acting space.

  
• traverse: form of staging where the audience is on either side of the acting area.

  
• up stage: the back part of the stage, behind the centre stage area, further away from the audience.