motion imparted to a ball that causes it to rotate forward.
spin imparted to make a ball bounce or travel exceptionally far, high, or quickly, as by hitting it with a sharp forward and upward stroke
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Racket innovations and fitter, stronger players are turning tennis into a game of ever faster shots with ever more topspin.
If a player wants to return a ball with topspin, he has to reverse the spin of the incoming ball.
Back then, topspin lobs were still considered exotic.
Every time his racket whips skyward, creating that incredible topspin, my heart leaps.
He was perennially in pursuit of a longer backswing and a topspin backhand.