Wordnet 3.0
NOUN (1)
1. 
 a tennis return made with a downward motion that puts backspin on the ball; 
[syn: chop, chop shot]
WordNet (r) 3.0 (2006):
chop shot
    n 1: a tennis return made with a downward motion that puts
         backspin on the ball [syn: chop, chop shot]