Topspin is a type of spin applied to a ball in sports like tennis and table tennis. When a player hits the ball with topspin, it rotates forward, causing it to dip quickly after crossing the net. This makes the ball bounce higher and can make it more challenging for opponents to return. In addition to enhancing control and accuracy, topspin can also increase the speed of the ball. Players often use topspin to create aggressive shots that push their opponents back, giving them an advantage during rallies. Mastering topspin is essential for competitive players in these sports.