noun
topspin
Sports term for forward rotation imparted to a ball, causing it to dip or bounce high. Used in tennis, table tennis, baseball, etc.
彼のトップスピンのかかったフォアハンドはとても強力だ。
His topspin forehand is very powerful.
卓球では、トップスピンを
In table tennis, applying topspin makes the ball bounce high on the opponent's side.