A waterfall or rapid.
A framework, trough, or tube, upon or through which objects are made to slide from a higher to a lower level, or through which water passes to a wheel.
The pen in which an animal is confined before being released in a rodeo.
A parachute.
A spinnaker.
To parachute.
A channel crossing under a road or railway for the draining of water.
To channel (a stream of water) through a culvert.