1. (

• undersell ,
• undercut

) sell cheaper than one's competition ;

2. (

• undercut ,

) cut away material from the underside of (an object) so as to leave an overhanging portion in relief ;

3. (

• undercut ,

) cut away the underpart of; "undercut a vein of ore" ;

4. (

• undercut

) strike (the ball) in golf, tennis, or hockey obliquely downward so as to give a backspin or elevation to the shot ;

5. (

• undercut ,

) cut obliquely into (a tree) below the main cut and on the side toward which the tree will fall ;