A horizontal plane that helps to define the view range in a floor plan or reflected ceiling plan. By default - the ______ is the same as the bottom clip plane. However - you can specify the ______ to show elements (such as foundation footings) below

Revit is often used for designing buildings and creating 3D models of architectural designs. It allows architects to create detailed building designs, visualize the project in 3D, and produce detailed documentation and construction drawings.
Revit is a contraction of Revise-Instantly.