Forespin vs. Topspin

Forespinnoun

Topspin.

Topspinnoun

A rotational motion, especially that given to a ball, in which the upper surface spins in the direction of motion.

Topspinnoun

An edgy, quirky or otherwise engaging quality that holds the interest of the audience.

Topspinverb

(transitive) To spin (a ball) with this motion.

Topspinnoun

forward spin (usually of a moving ball) that is imparted by an upward stroke

Topspin

In ball sports, topspin is a property of a ball that rotates forwards as it is moving. Topspin on a ball propelled through the air imparts a downward force that causes the ball to drop, due to its interaction with the air (see Magnus effect).