- A shape is a graphical representation of an object’s form or its external boundary, outline, or external surface. It is distinct from other object properties, such as color, texture, or material type. In geometry, shape excludes information about the object’s location, scale, orientation and reflection. A figure is a representation including both shape and size (as in, e.g., figure of the Earth).
- Waterfall (Wikipedia)
A waterfall is any point in a river or stream where water flows over a vertical drop or a series of steep drops. Waterfalls also occur where meltwater drops over the edge of a tabular iceberg or ice shelf.