undercut in WordNet English dictionary

1. (sports) a stroke that puts reverse spin on the ball
   "cuts do not bother a good tennis player"
   cut  undercut 
   
2. the tender meat of the loin muscle on each side of the vertebral column
   tenderloin  undercut 
   
3. a cut made underneath to remove material
   undercut 
   
4. a notch cut in the trunk of tree in order to determine the direction of its fall
   undercut 
   
5. the material removed by a cut made underneath
   undercut 
   

1. strike (the ball) in golf, tennis, or hockey obliquely downward so as to give a backspin or elevation to the shot
   undercut 
   
2. cut away the underpart of
   "undercut a vein of ore"
   undercut 
   
3. cut away material from the underside of (an object) so as to leave an overhanging portion in relief
   undercut 
   
4. cut obliquely into (a tree) below the main cut and on the side toward which the tree will fall
   undercut 
   
5. sell cheaper than one's competition
   undersell  undercut