A point when the kayak is oriented broadside to waves, currents, or an obstacle. The result of an uncontrolled broach is often a capsize.

The unplanned turning of a vessel to expose its side to the oncoming waves. In heavy seas this could cause the boat to be knocked down.

The act of cutting a shape in any object by using a mandrel of a similar shape. As applied to fasteners, the way a knurled shank "broaches" its way into the mounting hole.

Smoothing machined holes or outside surfaces of castings by drawing pushing on or more broaches (special cutting tools) through the roughed out hole.