°1. A spherical projectile fired from a smoothborecannon; a solid shot; a solid round shot; a ball. 2. An explosive-filled hollow iron sphere fused through a hole and intended to explode at a calculated distance rather than explode on impact.
°The result of running and jumping in a flexed position into a swimming pool to create a large splash, mimicking the flight and shape of a cannonball.
verb
°To jump/dive into water doing a cannonball landing.