A heavy iron ball used as a projectile in cannon fire.

A jump or dive into water, resembling the shape of a cannonball.

गोताखोरी का एक तरीका

English Usage: He performed a cannonball into the pool, making a big splash.

Hindi Usage: उन्होंने पूल में गोताखोरी करते हुए बड़ा छपाका मारा।