- a steep fall or flow of water in a watercourse from a height, as over a precipice; cascade.
- a manner of arranging women's hair, as in long, loose waves.
- noting or relating to a philosophy of product development and production that includes sequential stages, from conception and design through testing and implementation, resulting in one finalized version of the product: waterfall development; waterfall management;a waterfall model.
- a cascade of falling water where there is a vertical or almost vertical step in a river
