noun: (theater) A diagram showing the physical layout of a set, especially the placement of structures on the stage, as opposed to items on the walls or suspended from the ceiling.
noun: A diagram, usually to scale, showing the layout of the ground level of a building or other physical structure; floorplan.
noun: A framework or pattern showing the form of something, without all the details.
noun: (evolutionary theory) A hypothetical anatomical form from which members of a clade are adaptations.